Annotation of html5/spec-author-view/embedded-content-0.html, revision 1.526

1.498     mike        1: <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN">
                      2: <!DOCTYPE html>
                      3: <!-- when publishing, change bits marked ZZZ --><html lang="en-US-x-Hixie"><head><title>3.2.5.1.6 Embedded content &#8212; HTML 5</title><style type="text/css">
                      4:    pre { margin-left: 2em; white-space: pre-wrap; }
                      5:    h2 { margin: 3em 0 1em 0; }
                      6:    h3 { margin: 2.5em 0 1em 0; }
                      7:    h4 { margin: 2.5em 0 0.75em 0; }
                      8:    h5, h6 { margin: 2.5em 0 1em; }
                      9:    h1 + h2, h1 + h2 + h2 { margin: 0.75em 0 0.75em; }
                     10:    h2 + h3, h3 + h4, h4 + h5, h5 + h6 { margin-top: 0.5em; }
                     11:    p { margin: 1em 0; }
                     12:    hr:not(.top) { display: block; background: none; border: none; padding: 0; margin: 2em 0; height: auto; }
                     13:    dl, dd { margin-top: 0; margin-bottom: 0; }
                     14:    dt { margin-top: 0.75em; margin-bottom: 0.25em; clear: left; }
                     15:    dt + dt { margin-top: 0; }
                     16:    dd dt { margin-top: 0.25em; margin-bottom: 0; }
                     17:    dd p { margin-top: 0; }
                     18:    dd dl + p { margin-top: 1em; }
                     19:    dd table + p { margin-top: 1em; }
                     20:    p + * > li, dd li { margin: 1em 0; }
                     21:    dt, dfn { font-weight: bold; font-style: normal; }
                     22:    dt dfn { font-style: italic; }
                     23:    pre, code { font-size: inherit; font-family: monospace; font-variant: normal; }
                     24:    pre strong { color: black; font: inherit; font-weight: bold; background: yellow; }
                     25:    pre em { font-weight: bolder; font-style: normal; }
                     26:    @media screen { code { color: orangered; } code :link, code :visited { color: inherit; } }
                     27:    var sub { vertical-align: bottom; font-size: smaller; position: relative; top: 0.1em; }
                     28:    table { border-collapse: collapse; border-style: hidden hidden none hidden; }
                     29:    table thead { border-bottom: solid; }
                     30:    table tbody th:first-child { border-left: solid; }
                     31:    table tbody th { text-align: left; }
                     32:    table td, table th { border-left: solid; border-right: solid; border-bottom: solid thin; vertical-align: top; padding: 0.2em; }
                     33:    blockquote { margin: 0 0 0 2em; border: 0; padding: 0; font-style: italic; }
                     34: 
                     35:    .bad, .bad *:not(.XXX) { color: gray; border-color: gray; background: transparent; }
                     36:    .matrix, .matrix td { border: none; text-align: right; }
                     37:    .matrix { margin-left: 2em; }
                     38:    .dice-example { border-collapse: collapse; border-style: hidden solid solid hidden; border-width: thin; margin-left: 3em; }
                     39:    .dice-example caption { width: 30em; font-size: smaller; font-style: italic; padding: 0.75em 0; text-align: left; }
                     40:    .dice-example td, .dice-example th { border: solid thin; width: 1.35em; height: 1.05em; text-align: center; padding: 0; }
                     41: 
                     42:    .toc dfn, h1 dfn, h2 dfn, h3 dfn, h4 dfn, h5 dfn, h6 dfn { font: inherit; }
                     43:    img.extra { float: right; }
                     44:    pre.idl { border: solid thin; background: #EEEEEE; color: black; padding: 0.5em 1em; }
                     45:    pre.idl :link, pre.idl :visited { color: inherit; background: transparent; }
                     46:    pre.css { border: solid thin; background: #FFFFEE; color: black; padding: 0.5em 1em; }
                     47:    pre.css:first-line { color: #AAAA50; }
                     48:    dl.domintro { color: green; margin: 2em 0 2em 2em; padding: 0.5em 1em; border: none; background: #EEFFEE; }
                     49:    hr + dl.domintro, div.impl + dl.domintro { margin-top: 2.5em; margin-bottom: 1.5em; }
                     50:    dl.domintro dt, dl.domintro dt * { color: black; text-decoration: none; }
                     51:    dl.domintro dd { margin: 0.5em 0 1em 2em; padding: 0; }
                     52:    dl.domintro dd p { margin: 0.5em 0; }
                     53:    dl.switch { padding-left: 2em; }
                     54:    dl.switch > dt { text-indent: -1.5em; }
                     55:    dl.switch > dt:before { content: '\21AA'; padding: 0 0.5em 0 0; display: inline-block; width: 1em; text-align: right; line-height: 0.5em; }
                     56:    dl.triple { padding: 0 0 0 1em; }
                     57:    dl.triple dt, dl.triple dd { margin: 0; display: inline }
                     58:    dl.triple dt:after { content: ':'; }
                     59:    dl.triple dd:after { content: '\A'; white-space: pre; }
                     60:    .diff-old { text-decoration: line-through; color: silver; background: transparent; }
                     61:    .diff-chg, .diff-new { text-decoration: underline; color: green; background: transparent; }
                     62:    a .diff-new { border-bottom: 1px blue solid; }
                     63: 
                     64:    h2 { page-break-before: always; }
                     65:    h1, h2, h3, h4, h5, h6 { page-break-after: avoid; }
                     66:    h1 + h2, hr + h2.no-toc { page-break-before: auto; }
                     67: 
                     68:    p > span:not([title=""]):not([class="XXX"]):not([class="impl"]), li > span:not([title=""]):not([class="XXX"]):not([class="impl"]) { border-bottom: solid #9999CC; }
                     69: 
                     70:    div.head { margin: 0 0 1em; padding: 1em 0 0 0; }
                     71:    div.head p { margin: 0; }
                     72:    div.head h1 { margin: 0; }
                     73:    div.head .logo { float: right; margin: 0 1em; }
                     74:    div.head .logo img { border: none } /* remove border from top image */
                     75:    div.head dl { margin: 1em 0; }
1.514     mike       76:    div.head p.copyright { font-size: x-small; font-style: oblique; margin: 0; }
1.498     mike       77: 
                     78:    body > .toc > li { margin-top: 1em; margin-bottom: 1em; }
                     79:    body > .toc.brief > li { margin-top: 0.35em; margin-bottom: 0.35em; }
                     80:    body > .toc > li > * { margin-bottom: 0.5em; }
                     81:    body > .toc > li > * > li > * { margin-bottom: 0.25em; }
                     82:    .toc, .toc li { list-style: none; }
                     83: 
                     84:    .brief { margin-top: 1em; margin-bottom: 1em; line-height: 1.1; }
                     85:    .brief li { margin: 0; padding: 0; }
                     86:    .brief li p { margin: 0; padding: 0; }
                     87: 
                     88:    .category-list { margin-top: -0.75em; margin-bottom: 1em; line-height: 1.5; }
                     89:    .category-list::before { content: '\21D2\A0'; font-size: 1.2em; font-weight: 900; }
                     90:    .category-list li { display: inline; }
                     91:    .category-list li:not(:last-child)::after { content: ', '; }
                     92:    .category-list li > span, .category-list li > a { text-transform: lowercase; }
                     93:    .category-list li * { text-transform: none; } /* don't affect <code> nested in <a> */
                     94: 
                     95:    .XXX { color: #E50000; background: white; border: solid red; padding: 0.5em; margin: 1em 0; }
                     96:    .XXX > :first-child { margin-top: 0; }
                     97:    p .XXX { line-height: 3em; }
                     98:    .annotation { border: solid thin black; background: #0C479D; color: white; position: relative; margin: 8px 0 20px 0; }
                     99:    .annotation:before { position: absolute; left: 0; top: 0; width: 100%; height: 100%; margin: 6px -6px -6px 6px; background: #333333; z-index: -1; content: ''; }
                    100:    .annotation :link, .annotation :visited { color: inherit; }
                    101:    .annotation :link:hover, .annotation :visited:hover { background: transparent; }
                    102:    .annotation span { border: none ! important; }
                    103:    .note { color: green; background: transparent; font-family: sans-serif; }
                    104:    .warning { color: red; background: transparent; }
                    105:    .note, .warning { font-weight: bolder; font-style: italic; }
                    106:    p.note, div.note { padding: 0.5em 2em; }
                    107:    span.note { padding: 0 2em; }
                    108:    .note p:first-child, .warning p:first-child { margin-top: 0; }
                    109:    .note p:last-child, .warning p:last-child { margin-bottom: 0; }
                    110:    .warning:before { font-style: normal; }
                    111:    p.note:before { content: 'Note: '; }
                    112:    p.warning:before { content: '\26A0 Warning! '; }
                    113: 
                    114:    .bookkeeping:before { display: block; content: 'Bookkeeping details'; font-weight: bolder; font-style: italic; }
                    115:    .bookkeeping { font-size: 0.8em; margin: 2em 0; }
                    116:    .bookkeeping p { margin: 0.5em 2em; display: list-item; list-style: square; }
                    117: 
                    118:    h4 { position: relative; z-index: 3; }
                    119:    h4 + .element, h4 + div + .element { margin-top: -2.5em; padding-top: 2em; }
                    120:    .element {
                    121:      background: #EEEEFF;
                    122:      color: black;
                    123:      margin: 0 0 1em 0.15em;
                    124:      padding: 0 1em 0.25em 0.75em;
                    125:      border-left: solid #9999FF 0.25em;
                    126:      position: relative;
                    127:      z-index: 1;
                    128:    }
                    129:    .element:before {
                    130:      position: absolute;
                    131:      z-index: 2;
                    132:      top: 0;
                    133:      left: -1.15em;
                    134:      height: 2em;
                    135:      width: 0.9em;
                    136:      background: #EEEEFF;
                    137:      content: ' ';
                    138:      border-style: none none solid solid;
                    139:      border-color: #9999FF;
                    140:      border-width: 0.25em;
                    141:    }
                    142: 
                    143:    .example { display: block; color: #222222; background: #FCFCFC; border-left: double; margin-left: 2em; padding-left: 1em; }
                    144:    td > .example:only-child { margin: 0 0 0 0.1em; }
                    145: 
                    146:    .tall-and-narrow {
                    147:      font-size: 0.6em;
                    148:      column-width: 25em;
                    149:      column-gap: 1em;
                    150:      -moz-column-width: 25em;
                    151:      -moz-column-gap: 1em;
                    152:      -webkit-column-width: 25em;
                    153:      -webkit-column-gap: 1em;
                    154:    }
                    155: 
                    156:    ul.domTree, ul.domTree ul { padding: 0 0 0 1em; margin: 0; }
                    157:    ul.domTree li { padding: 0; margin: 0; list-style: none; position: relative; }
                    158:    ul.domTree li li { list-style: none; }
                    159:    ul.domTree li:first-child::before { position: absolute; top: 0; height: 0.6em; left: -0.75em; width: 0.5em; border-style: none none solid solid; content: ''; border-width: 0.1em; }
                    160:    ul.domTree li:not(:last-child)::after { position: absolute; top: 0; bottom: -0.6em; left: -0.75em; width: 0.5em; border-style: none none solid solid; content: ''; border-width: 0.1em; }
                    161:    ul.domTree span { font-style: italic; font-family: serif; }
                    162:    ul.domTree .t1 code { color: purple; font-weight: bold; }
                    163:    ul.domTree .t2 { font-style: normal; font-family: monospace; }
                    164:    ul.domTree .t2 .name { color: black; font-weight: bold; }
                    165:    ul.domTree .t2 .value { color: blue; font-weight: normal; }
                    166:    ul.domTree .t3 code, .domTree .t4 code, .domTree .t5 code { color: gray; }
                    167:    ul.domTree .t7 code, .domTree .t8 code { color: green; }
                    168:    ul.domTree .t10 code { color: teal; }
                    169: 
1.515     mike      170:    #configUI { position: absolute; z-index: 20; top: 10em; right: 1em; width: 11em; font-size: small; }
                    171:    #configUI p { margin: 0.5em 0; padding: 0.3em; background: #EEEEEE; color: black; border: inset thin; }
                    172:    #configUI p label { display: block; }
                    173:    #configUI #updateUI, #configUI .loginUI { text-align: center; }
                    174:    #configUI input[type=button] { display: block; margin: auto; }
1.498     mike      175:   </style><style type="text/css">
                    176: 
                    177:    .applies thead th > * { display: block; }
                    178:    .applies thead code { display: block; }
                    179:    .applies tbody th { whitespace: nowrap; }
                    180:    .applies td { text-align: center; }
                    181:    .applies .yes { background: yellow; }
                    182: 
                    183:    .matrix, .matrix td { border: none; text-align: right; }
                    184:    .matrix { margin-left: 2em; }
                    185: 
                    186:    .dice-example { border-collapse: collapse; border-style: hidden solid solid hidden; border-width: thin; margin-left: 3em; }
                    187:    .dice-example caption { width: 30em; font-size: smaller; font-style: italic; padding: 0.75em 0; text-align: left; }
                    188:    .dice-example td, .dice-example th { border: solid thin; width: 1.35em; height: 1.05em; text-align: center; padding: 0; }
                    189: 
                    190:    #table-example-1 { border: solid thin; border-collapse: collapse; margin-left: 3em; }
                    191:    #table-example-1 * { font-family: "Essays1743", serif; line-height: 1.01em; }
                    192:    #table-example-1 caption { padding-bottom: 0.5em; }
                    193:    #table-example-1 thead, #table-example-1 tbody { border: none; }
                    194:    #table-example-1 th, #table-example-1 td { border: solid thin; }
                    195:    #table-example-1 th { font-weight: normal; }
                    196:    #table-example-1 td { border-style: none solid; vertical-align: top; }
                    197:    #table-example-1 th { padding: 0.5em; vertical-align: middle; text-align: center; }
                    198:    #table-example-1 tbody tr:first-child td { padding-top: 0.5em; }
                    199:    #table-example-1 tbody tr:last-child td { padding-bottom: 1.5em; }
                    200:    #table-example-1 tbody td:first-child { padding-left: 2.5em; padding-right: 0; width: 9em; }
                    201:    #table-example-1 tbody td:first-child::after { content: leader(". "); }
                    202:    #table-example-1 tbody td { padding-left: 2em; padding-right: 2em; }
                    203:    #table-example-1 tbody td:first-child + td { width: 10em; }
                    204:    #table-example-1 tbody td:first-child + td ~ td { width: 2.5em; }
                    205:    #table-example-1 tbody td:first-child + td + td + td ~ td { width: 1.25em; }
                    206: 
                    207:    .apple-table-examples { border: none; border-collapse: separate; border-spacing: 1.5em 0em; width: 40em; margin-left: 3em; }
                    208:    .apple-table-examples * { font-family: "Times", serif; }
                    209:    .apple-table-examples td, .apple-table-examples th { border: none; white-space: nowrap; padding-top: 0; padding-bottom: 0; }
                    210:    .apple-table-examples tbody th:first-child { border-left: none; width: 100%; }
                    211:    .apple-table-examples thead th:first-child ~ th { font-size: smaller; font-weight: bolder; border-bottom: solid 2px; text-align: center; }
                    212:    .apple-table-examples tbody th::after, .apple-table-examples tfoot th::after { content: leader(". ") }
                    213:    .apple-table-examples tbody th, .apple-table-examples tfoot th { font: inherit; text-align: left; }
                    214:    .apple-table-examples td { text-align: right; vertical-align: top; }
                    215:    .apple-table-examples.e1 tbody tr:last-child td { border-bottom: solid 1px; }
                    216:    .apple-table-examples.e1 tbody + tbody tr:last-child td { border-bottom: double 3px; }
                    217:    .apple-table-examples.e2 th[scope=row] { padding-left: 1em; }
                    218:    .apple-table-examples sup { line-height: 0; }
                    219: 
1.513     mike      220:   </style><link href="data:text/css," rel="stylesheet" title="Complete specification"><link href="data:text/css,.impl%20%7B%20display:%20none;%20%7D" rel="alternate stylesheet" title="Author documentation only"><link href="data:text/css,.impl%20%7B%20background:%20%23FFEEEE;%20%7D" rel="alternate stylesheet" title="Highlight implementation requirements"><link href="data:text/css," id="complete" rel="stylesheet" title="Complete specification"><link href="data:text/css,.impl%20%7B%20display:%20none;%20%7D" id="author" rel="alternate stylesheet" title="Author documentation only"><link href="data:text/css,.impl%20%7B%20background:%20%23FFEEEE;%20%7D" id="highlight" rel="alternate stylesheet" title="Highlight implementation requirements"><script>
                    221:    function getCookie(name) {
                    222:      var params = location.search.substr(1).split("&");
                    223:      for (var index = 0; index < params.length; index++) {
                    224:        if (params[index] == name)
                    225:          return "1";
                    226:        var data = params[index].split("=");
                    227:        if (data[0] == name)
                    228:          return unescape(data[1]);
                    229:      }
                    230:      var cookies = document.cookie.split("; ");
                    231:      for (var index = 0; index < cookies.length; index++) {
                    232:        var data = cookies[index].split("=");
                    233:        if (data[0] == name)
                    234:          return unescape(data[1]);
                    235:      }
                    236:      return null;
                    237:    }
                    238:    function load(script) {
                    239:      var e = document.createElement('script');
1.516     mike      240:      e.setAttribute('src', 'http://www.whatwg.org/specs/web-apps/current-work/' + script + '?' + encodeURIComponent(location) + '&' + encodeURIComponent(document.referrer));
1.513     mike      241:      document.body.appendChild(e);
                    242:    }
                    243:    function init() {
                    244:      if (location.search == '?slow-browser')
                    245:        return;
                    246:      var configUI = document.createElement('div');
                    247:      configUI.id = 'configUI';
                    248:      document.body.appendChild(configUI);
                    249:      // load('reviewer.js'); // would need cross-site XHR
                    250:      if (document.getElementById('head'))
                    251:        load('toc.js');
                    252:      load('styler.js');
                    253:      // load('updater.js'); // would need cross-site XHR
1.516     mike      254:      load('dfn.js');
1.513     mike      255:      // load('status.js'); // would need cross-site XHR
                    256:      if (getCookie('profile') == '1')
                    257:        document.getElementsByTagName('h2')[0].textContent += '; load: ' + (new Date() - loadTimer) + 'ms';
                    258:      fixBrokenLink();
                    259:    }
                    260:   </script><link href="http://www.w3.org/StyleSheets/TR/W3C-ED" rel="stylesheet" type="text/css"><link href="dom.html" title="3 Semantics, structure, and APIs of HTML documents" rel="prev">
1.498     mike      261:   <link href="Overview.html#contents" title="Table of contents" rel="index">
                    262:   <link href="semantics.html" title="4 The elements of HTML" rel="next">
1.513     mike      263:   </head><body onload="fixBrokenLink(); init()"><div class="head" id="head">
1.498     mike      264:    <p><a href="http://www.w3.org/"><img alt="W3C" height="48" src="http://www.w3.org/Icons/w3c_home" width="72"></a></p>
                    265:    <h1>HTML5</h1>
                    266:    <h2 class="no-num no-toc" id="a-vocabulary-and-associated-apis-for-html-and-xhtml">A vocabulary and associated APIs for HTML and XHTML</h2>
1.526   ! mike      267: <p>This is revision 1.3538.</p>
1.498     mike      268: 
                    269:    </div><div>
                    270:    <a href="dom.html">&#8592; 3 Semantics, structure, and APIs of HTML documents</a> &#8211;
                    271:    <a href="Overview.html#contents">Table of contents</a> &#8211;
                    272:    <a href="semantics.html">4 The elements of HTML &#8594;</a>
                    273:   </div>
                    274: 
                    275:   <h6 id="embedded-content-0"><span class="secno">3.2.5.1.6 </span>Embedded content</h6><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p><p><dfn id="embedded-content">Embedded content</dfn> is content that imports another
                    276:   resource into the document, or content from another vocabulary that
                    277:   is inserted into the document.</p><ul class="brief category-list"><li><code><a href="video.html#audio">audio</a></code></li>
                    278:    <li><code><a href="the-canvas-element.html#the-canvas-element">canvas</a></code></li>
                    279:    <li><code><a href="text-level-semantics.html#the-embed-element">embed</a></code></li>
                    280:    <li><code><a href="text-level-semantics.html#the-iframe-element">iframe</a></code></li>
                    281:    <li><code><a href="text-level-semantics.html#the-img-element">img</a></code></li>
                    282:    <li><code><a href="the-canvas-element.html#math">math</a></code></li>
                    283:    <li><code><a href="text-level-semantics.html#the-object-element">object</a></code></li>
                    284:    <li><code><a href="the-canvas-element.html#svg">svg</a></code></li>
                    285:    <li><code><a href="video.html#video">video</a></code></li>
                    286:   </ul><p>Elements that are from namespaces other than the <a href="#html-namespace-0">HTML
                    287:   namespace</a> and that convey content but not metadata, are
                    288:   <a href="#embedded-content">embedded content</a> for the purposes of the content models
                    289:   defined in this specification. (For example, MathML, or SVG.)</p><p>Some embedded content elements can have <dfn id="fallback-content">fallback
                    290:   content</dfn>: content that is to be used when the external resource
                    291:   cannot be used (e.g. because it is of an unsupported format). The
                    292:   element definitions state what the fallback is, if any.</p><h6 id="interactive-content-0"><span class="secno">3.2.5.1.7 </span>Interactive content</h6><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p><!--
                    293: TESTS:
                    294: http://software.hixie.ch/utilities/js/live-dom-viewer/?%3C%21DOCTYPE%20html%3E%0A%3Cp%20tabindex%3D1%3Etest%20%3Ca%20href%3D%22%22%3E%20%3Cem%3Etest%3C/em%3E%20%3C/a%3E%0A%3Cscript%3E%0A%20function%20test%20%28e%29%20%7B%20w%28e.type%20+%20%27%20on%20%27%20+%20e.target.tagName%20+%20%27%20through%20%27%20+%20e.currentTarget.tagName%29%3B%20%7D%0A%20document.getElementsByTagName%28%27a%27%29%5B0%5D.addEventListener%28%27click%27%2C%20test%2C%20false%29%3B%0A%20document.getElementsByTagName%28%27a%27%29%5B0%5D.addEventListener%28%27DOMActivate%27%2C%20test%2C%20false%29%3B%0A%20document.getElementsByTagName%28%27p%27%29%5B0%5D.addEventListener%28%27click%27%2C%20test%2C%20false%29%3B%0A%20document.getElementsByTagName%28%27p%27%29%5B0%5D.addEventListener%28%27DOMActivate%27%2C%20test%2C%20false%29%3B%0A%3C/script%3E%0A
                    295: http://software.hixie.ch/utilities/js/live-dom-viewer/?%3C%21DOCTYPE%20HTML%3E%0A%3Ca%20href%3Dhttp%3A//google.com/%20target%3Da%3EA%3C/a%3E%3Ca%20href%3Dhttp%3A//yahoo.com/%20target%3Db%3EB%3C/a%3E%3Cbr%3E%0A%3Ciframe%20name%3Da%3E%3C/iframe%3E%3Ciframe%20name%3Db%3E%3C/iframe%3E%0A%3Cscript%3E%0A%20var%20a%20%3D%20document.getElementsByTagName%28%27a%27%29%5B0%5D%3B%0A%20var%20b%20%3D%20document.getElementsByTagName%28%27a%27%29%5B1%5D%3B%0A%20a.appendChild%28b%29%3B%0A%3C/script%3E
                    296: http://software.hixie.ch/utilities/js/live-dom-viewer/?%3C%21DOCTYPE%20HTML%3E%0A%3Cform%20action%3D%22http%3A//google.com/%22%20onsubmit%3D%22w%28%27onsubmit%27%29%22%3E%3Cem%3EA%3C/em%3E%3C/form%3E%0A%3Cscript%3E%0Adocument.getElementsByTagName%28%27form%27%29%5B0%5D.attachEvent%28%27onsubmit%27%2C%20function%20%28%29%20%7B%20w%28%27submit%20fired%27%29%20%7D%29%3B%0Adocument.getElementsByTagName%28%27form%27%29%5B0%5D.fireEvent%28%27onsubmit%27%29%3B%0A%3C/script%3E
                    297: http://software.hixie.ch/utilities/js/live-dom-viewer/?%3C%21DOCTYPE%20HTML%3E%0A%3Cform%20action%3D%22http%3A//google.com/%22%3EX%3C/form%3E%0A%3Cscript%3E%0Avar%20evt%20%3D%20document.createEvent%28%22Events%22%29%3B%0Aevt.initEvent%28%22submit%22%2C%20true%2C%20true%29%3B%0Adocument.getElementsByTagName%28%27form%27%29%5B0%5D.dispatchEvent%28evt%29%3B%0A%3C/script%3E
                    298: --><p><dfn id="interactive-content">Interactive content</dfn> is content that is specifically
                    299:   intended for user interaction.</p><ul class="brief category-list"><li><code><a href="text-level-semantics.html#the-a-element">a</a></code></li>
                    300:    <li><code><a href="video.html#audio">audio</a></code> (if the <code title="attr-media-controls"><a href="video.html#attr-media-controls">controls</a></code> attribute is present)</li>
                    301:    <li><code><a href="forms.html#the-button-element">button</a></code></li>
                    302: <!-- v2DATAGRID   <li><code>datagrid</code></li> -->
                    303:    <li><code><a href="interactive-elements.html#the-details-element">details</a></code></li>
                    304:    <li><code><a href="text-level-semantics.html#the-embed-element">embed</a></code></li>
                    305:    <li><code><a href="text-level-semantics.html#the-iframe-element">iframe</a></code></li>
                    306:    <li><code><a href="text-level-semantics.html#the-img-element">img</a></code> (if the <code title="attr-hyperlink-usemap"><a href="the-canvas-element.html#attr-hyperlink-usemap">usemap</a></code> attribute is present)</li>
                    307:    <li><code><a href="forms.html#the-input-element">input</a></code> (if the <code title="attr-input-type"><a href="forms.html#attr-input-type">type</a></code> attribute is <em>not</em> in the <a href="forms.html#hidden-state" title="attr-input-type-hidden">Hidden</a> state)</li>
                    308:    <li><code><a href="forms.html#the-keygen-element">keygen</a></code></li>
                    309:    <li><code><a href="forms.html#the-label-element">label</a></code></li>
                    310:    <li><code><a href="interactive-elements.html#menus">menu</a></code> (if the <code title="attr-menu-type"><a href="interactive-elements.html#attr-menu-type">type</a></code> attribute is in the <a href="interactive-elements.html#toolbar-state" title="toolbar state">toolbar</a> state)</li>
                    311:    <li><code><a href="text-level-semantics.html#the-object-element">object</a></code> (if the <code title="attr-hyperlink-usemap"><a href="the-canvas-element.html#attr-hyperlink-usemap">usemap</a></code> attribute is present)<!-- see also comment in <object> section --></li>
                    312:    <li><code><a href="forms.html#the-select-element">select</a></code></li>
                    313:    <li><code><a href="forms.html#the-textarea-element">textarea</a></code></li>
                    314:    <li><code><a href="video.html#video">video</a></code> (if the <code title="attr-media-controls"><a href="video.html#attr-media-controls">controls</a></code> attribute is present)</li>
                    315:   </ul><p>Certain elements in HTML have an <a href="#activation-behavior">activation
                    316:   behavior</a>, which means that the user can activate them. This
                    317:   triggers a sequence of events dependent on the activation mechanism,
                    318:   and normally culminating in a <code title="event-click">click</code>
                    319:   event followed by a <code title="event-DOMActivate">DOMActivate</code> event.</p><h5 id="transparent-content-models"><span class="secno">3.2.5.2 </span>Transparent content models</h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p><p>Some elements are described as <dfn id="transparent">transparent</dfn>; they have
                    320:   "transparent" in the description of their content model.</p><p>When a content model includes a part that is "transparent", those
                    321:   parts must not contain content that would not be conformant if all
                    322:   transparent elements in the tree were replaced, in their parent
                    323:   element, by the children in the "transparent" part of their content
                    324:   model, retaining order.</p><div class="example">
                    325: 
                    326:    <p>Consider the following markup fragment:</p>
                    327: 
                    328:    <pre>&lt;p&gt;Hello &lt;a href="world.html"&gt;&lt;em&gt;wonderful&lt;/em&gt; world&lt;/a&gt;!&lt;/p&gt;</pre>
                    329: 
                    330:    <p>Its DOM looks like the following:</p>
                    331: 
                    332:    <ul class="domTree"><li class="t1"><code><a href="semantics.html#the-p-element">p</a></code><ul><li class="t3"><code>#text</code>: <span title="">Hello </span></li><li class="t1"><code><a href="text-level-semantics.html#the-a-element">a</a></code> <span class="t2" title=""><code class="attribute name">href</code>="<code class="attribute value">world.html</code>"</span><ul><li class="t1"><code><a href="text-level-semantics.html#the-em-element">em</a></code><ul><li class="t3"><code>#text</code>: <span title="">wonderful</span></li></ul></li><li class="t3"><code>#text</code>: <span title=""> world</span></li></ul></li><li class="t3"><code>#text</code>: <span title="">!</span></li></ul></li></ul><p>The content model of the <code><a href="text-level-semantics.html#the-a-element">a</a></code> element is
                    333:    <a href="#transparent">transparent</a>. To see if its contents are conforming,
                    334:    therefore, the element is replaced by its contents:</p>
                    335: 
                    336:    <ul class="domTree"><li class="t1"><code><a href="semantics.html#the-p-element">p</a></code><ul><li class="t3"><code>#text</code>: <span title="">Hello </span></li><li class="t1"><code><a href="text-level-semantics.html#the-em-element">em</a></code><ul><li class="t3"><code>#text</code>: <span title="">wonderful</span></li></ul></li><li class="t3"><code>#text</code>: <span title=""> world</span></li><li class="t3"><code>#text</code>: <span title="">!</span></li></ul></li></ul><p>Since that is conforming, the contents of the <code><a href="text-level-semantics.html#the-a-element">a</a></code> are
                    337:    conforming in the original fragment.</p>
                    338: 
                    339:   </div><p>When a transparent element has no parent, then the part of its
                    340:   content model that is "transparent" must instead be treated as
                    341:   accepting any <a href="dom.html#flow-content">flow content</a>.</p><h5 id="paragraphs"><span class="secno">3.2.5.3 </span>Paragraphs</h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p><p class="note">The term <a href="#paragraph">paragraph</a> as defined in this
                    342:   section is distinct from (though related to) the <code><a href="semantics.html#the-p-element">p</a></code>
                    343:   element defined later. The <a href="#paragraph">paragraph</a> concept defined
                    344:   here is used to describe how to interpret documents.</p><p>A <dfn id="paragraph">paragraph</dfn> is typically a run of <a href="dom.html#phrasing-content">phrasing
                    345:   content</a> that forms a block of text with one or more sentences
                    346:   that discuss a particular topic, as in typography, but can also be
                    347:   used for more general thematic grouping. For instance, an address is
                    348:   also a paragraph, as is a part of a form, a byline, or a stanza in a
                    349:   poem.</p><div class="example">
                    350: 
                    351:    <p>In the following example, there are two paragraphs in a
                    352:    section. There is also a heading, which contains phrasing content
                    353:    that is not a paragraph. Note how the comments and
                    354:    <a href="dom.html#inter-element-whitespace">inter-element whitespace</a> do not form paragraphs.</p>
                    355: 
                    356:    <pre>&lt;section&gt;
                    357:   &lt;h1&gt;Example of paragraphs&lt;/h1&gt;
                    358:   This is the &lt;em&gt;first&lt;/em&gt; paragraph in this example.
                    359:   &lt;p&gt;This is the second.&lt;/p&gt;
                    360:   &lt;!-- This is not a paragraph. --&gt;
                    361: &lt;/section&gt;</pre>
                    362: 
                    363:   </div><p>Paragraphs in <a href="dom.html#flow-content">flow content</a> are defined relative to
                    364:   what the document looks like without the <code><a href="text-level-semantics.html#the-a-element">a</a></code>,
                    365:   <code><a href="text-level-semantics.html#the-ins-element">ins</a></code>, <code><a href="text-level-semantics.html#the-del-element">del</a></code>, and <code><a href="the-canvas-element.html#the-map-element">map</a></code> elements
                    366:   complicating matters, since those elements, with their hybrid
                    367:   content models, can straddle paragraph boundaries, as shown in the
                    368:   first two examples below.</p><p class="note">Generally, having elements straddle paragraph
                    369:   boundaries is best avoided. Maintaining such markup can be
                    370:   difficult.</p><div class="example">
                    371: 
                    372:    <p>The following example takes the markup from the earlier example
                    373:    and puts <code><a href="text-level-semantics.html#the-ins-element">ins</a></code> and <code><a href="text-level-semantics.html#the-del-element">del</a></code> elements around some
                    374:    of the markup to show that the text was changed (though in this
                    375:    case, the changes admittedly don't make much sense). Notice how
                    376:    this example has exactly the same paragraphs as the previous one,
                    377:    despite the <code><a href="text-level-semantics.html#the-ins-element">ins</a></code> and <code><a href="text-level-semantics.html#the-del-element">del</a></code> elements &#8212;
                    378:    the <code><a href="text-level-semantics.html#the-ins-element">ins</a></code> element straddles the heading and the first
                    379:    paragraph, and the <code><a href="text-level-semantics.html#the-del-element">del</a></code> element straddles the boundary
                    380:    between the two paragraphs.</p>
                    381: 
                    382:    <pre>&lt;section&gt;
                    383:   &lt;ins&gt;&lt;h1&gt;Example of paragraphs&lt;/h1&gt;
                    384:   This is the &lt;em&gt;first&lt;/em&gt; paragraph in&lt;/ins&gt; this example&lt;del&gt;.
                    385:   &lt;p&gt;This is the second.&lt;/p&gt;&lt;/del&gt;
                    386:   &lt;!-- This is not a paragraph. --&gt;
                    387: &lt;/section&gt;</pre>
                    388: 
                    389:   </div><p>A <a href="#paragraph">paragraph</a> is also formed explicitly by
                    390:   <code><a href="semantics.html#the-p-element">p</a></code> elements.</p><p class="note">The <code><a href="semantics.html#the-p-element">p</a></code> element can be used to wrap
                    391:   individual paragraphs when there would otherwise not be any content
                    392:   other than phrasing content to separate the paragraphs from each
                    393:   other.</p><div class="example">
                    394: 
                    395:    <p>In the following example, the link spans half of the first
                    396:    paragraph, all of the heading separating the two paragraphs, and
                    397:    half of the second paragraph. It straddles the paragraphs and the
                    398:    heading.</p>
                    399: 
                    400:    <pre>&lt;aside&gt;
                    401:  Welcome!
                    402:  &lt;a href="about.html"&gt;
                    403:   This is home of...
                    404:   &lt;h1&gt;The Falcons!&lt;/h1&gt;
                    405:   The Lockheed Martin multirole jet fighter aircraft!
                    406:  &lt;/a&gt;
                    407:  This page discusses the F-16 Fighting Falcon's innermost secrets.
                    408: &lt;/aside&gt;</pre>
                    409: 
                    410:    <p>Here is another way of marking this up, this time showing the
                    411:    paragraphs explicitly, and splitting the one link element into
                    412:    three:</p>
                    413: 
                    414:    <pre>&lt;aside&gt;
                    415:  &lt;p&gt;Welcome! &lt;a href="about.html"&gt;This is home of...&lt;/a&gt;&lt;/p&gt;
                    416:  &lt;h1&gt;&lt;a href="about.html"&gt;The Falcons!&lt;/a&gt;&lt;/h1&gt;
                    417:  &lt;p&gt;&lt;a href="about.html"&gt;The Lockheed Martin multirole jet
                    418:  fighter aircraft!&lt;/a&gt; This page discusses the F-16 Fighting
                    419:  Falcon's innermost secrets.&lt;/p&gt;
                    420: &lt;/aside&gt;</pre>
                    421: 
                    422:   </div><div class="example">
                    423: 
                    424:    <!-- I don't know if there's a better way to deal with this, but if
                    425:    there is, let me know... -->
                    426: 
                    427:    <p>It is possible for paragraphs to overlap when using certain
                    428:    elements that define fallback content. For example, in the
                    429:    following section:</p>
                    430: 
                    431:    <pre>&lt;section&gt;
                    432:  &lt;h1&gt;My Cats&lt;/h1&gt;
                    433:  You can play with my cat simulator.
                    434:  &lt;object data="cats.sim"&gt;
                    435:   To see the cat simulator, use one of the following links:
                    436:   &lt;ul&gt;
                    437:    &lt;li&gt;&lt;a href="cats.sim"&gt;Download simulator file&lt;/a&gt;
                    438:    &lt;li&gt;&lt;a href="http://sims.example.com/watch?v=LYds5xY4INU"&gt;Use online simulator&lt;/a&gt;
                    439:   &lt;/ul&gt;
                    440:   Alternatively, upgrade to the Mellblom Browser.
                    441:  &lt;/object&gt;
                    442:  I'm quite proud of it.
                    443: &lt;/section&gt;</pre>
                    444: 
                    445:    <p>There are five paragraphs:</p>
                    446: 
                    447:    <ol class="brief"><li>The paragraph that says "You can play with my cat
                    448:     simulator. <i title="">object</i> I'm quite proud of it.", where
                    449:     <i title="">object</i> is the <code><a href="text-level-semantics.html#the-object-element">object</a></code> element.</li>
                    450: 
                    451:     <li>The paragraph that says "To see the cat simulator, use one of
                    452:     the following links:".</li>
                    453: 
                    454:     <li>The paragraph that says "Download simulator file".</li>
                    455: 
                    456:     <li>The paragraph that says "Use online simulator".</li>
                    457: 
                    458:     <li>The paragraph that says "Alternatively, upgrade to the Mellblom Browser.".</li>
                    459: 
                    460:    </ol><p>The first paragraph is overlapped by the other four. A user
                    461:    agent that supports the "cats.sim" resource will only show the
                    462:    first one, but a user agent that shows the fallback will
                    463:    confusingly show the first sentence of the first paragraph as
                    464:    if it was in the same paragraph as the second one, and will show
                    465:    the last paragraph as if it was at the start of the second sentence
                    466:    of the first paragraph.</p>
                    467: 
                    468:    <p>To avoid this confusion, explicit <code><a href="semantics.html#the-p-element">p</a></code> elements can be
                    469:    used.</p>
                    470: 
                    471:   </div><h4 id="annotations-for-assistive-technology-products-aria"><span class="secno">3.2.6 </span><dfn>Annotations for assistive technology products</dfn> (ARIA)</h4><p>Authors may use the ARIA <code title="attr-aria-role">role</code>
                    472:   and <code title="attr-aria-*">aria-*</code> attributes on <a href="infrastructure.html#html-elements">HTML
                    473:   elements</a>, in accordance with the requirements described in
                    474:   the ARIA specifications, except where these conflict with the
                    475:   <span>strong native semantics</span> described below. These
                    476:   exceptions are intended to prevent authors from making assistive
                    477:   technology products report nonsensical states that do not represent
                    478:   the actual state of the document. <a href="references.html#refsARIA">[ARIA]</a></p><p>The following table defines the <span>strong native
                    479:   semantics</span>  that apply to <a href="infrastructure.html#html-elements">HTML
                    480:   elements</a>. Each language feature (element or attribute) in a
                    481:   cell in the first column implies the ARIA semantics (role, states,
                    482:   and/or properties) given in the cell in the second column of the
                    483:   same row. Authors must not set the ARIA <code title="attr-aria-role">role</code> and <code title="attr-aria-*">aria-*</code> attributes in a manner that
                    484:   conflicts with the semantics described in the following table. </p><table><thead><tr><th>Language feature
                    485:      </th><th>Strong native semantics and implied ARIA semantics</th></tr></thead><tbody><tr><td><code><a href="text-level-semantics.html#the-a-element">a</a></code> element that represents a <a href="history.html#hyperlink">hyperlink</a>
                    486:      </td><td><code title="attr-aria-role-link">link</code> role
                    487: 
                    488:     </td></tr><tr><td><code><a href="semantics.html#the-address-element">address</a></code> element
                    489:      </td><td><code title="attr-aria-role-contentinfo">contentinfo</code> role
                    490: 
                    491:     </td></tr><tr><td><code><a href="the-canvas-element.html#the-area-element">area</a></code> element that represents a <a href="history.html#hyperlink">hyperlink</a>
                    492:      </td><td><code title="attr-aria-role-link">link</code> role
                    493: 
                    494:     </td></tr><tr><td><code><a href="forms.html#the-button-element">button</a></code> element
                    495:      </td><td><code title="attr-aria-role-button">button</code> role
                    496: 
                    497:     </td></tr><tr><td><code><a href="forms.html#the-datalist-element">datalist</a></code> element
                    498:      </td><td><code title="attr-aria-role-listbox">listbox</code> role, with the <code title="attr-aria-multiselectable">aria-multiselectable</code> property set to "false"
                    499: 
                    500:     </td></tr><tr><td><code><a href="semantics.html#the-footer-element">footer</a></code> element
                    501:      </td><td><code title="attr-aria-role-contentinfo">contentinfo</code> role
                    502: 
                    503:     </td></tr><tr><td><code><a href="semantics.html#the-h1-h2-h3-h4-h5-and-h6-elements">h1</a></code> element that does not have an <code><a href="semantics.html#the-hgroup-element">hgroup</a></code> ancestor
                    504:      </td><td><code title="attr-aria-role-heading">heading</code> role, with the <code title="attr-aria-level">aria-level</code> property set to the element's <a href="#outline-depth">outline depth</a>
                    505: 
                    506:     </td></tr><tr><td><code><a href="semantics.html#the-h1-h2-h3-h4-h5-and-h6-elements">h2</a></code> element that does not have an <code><a href="semantics.html#the-hgroup-element">hgroup</a></code> ancestor
                    507:      </td><td><code title="attr-aria-role-heading">heading</code> role, with the <code title="attr-aria-level">aria-level</code> property set to the element's <a href="#outline-depth">outline depth</a>
                    508: 
                    509:     </td></tr><tr><td><code><a href="semantics.html#the-h1-h2-h3-h4-h5-and-h6-elements">h3</a></code> element that does not have an <code><a href="semantics.html#the-hgroup-element">hgroup</a></code> ancestor
                    510:      </td><td><code title="attr-aria-role-heading">heading</code> role, with the <code title="attr-aria-level">aria-level</code> property set to the element's <a href="#outline-depth">outline depth</a>
                    511: 
                    512:     </td></tr><tr><td><code><a href="semantics.html#the-h1-h2-h3-h4-h5-and-h6-elements">h4</a></code> element that does not have an <code><a href="semantics.html#the-hgroup-element">hgroup</a></code> ancestor
                    513:      </td><td><code title="attr-aria-role-heading">heading</code> role, with the <code title="attr-aria-level">aria-level</code> property set to the element's <a href="#outline-depth">outline depth</a>
                    514: 
                    515:     </td></tr><tr><td><code><a href="semantics.html#the-h1-h2-h3-h4-h5-and-h6-elements">h5</a></code> element that does not have an <code><a href="semantics.html#the-hgroup-element">hgroup</a></code> ancestor
                    516:      </td><td><code title="attr-aria-role-heading">heading</code> role, with the <code title="attr-aria-level">aria-level</code> property set to the element's <a href="#outline-depth">outline depth</a>
                    517: 
                    518:     </td></tr><tr><td><code><a href="semantics.html#the-h1-h2-h3-h4-h5-and-h6-elements">h6</a></code> element that does not have an <code><a href="semantics.html#the-hgroup-element">hgroup</a></code> ancestor
                    519:      </td><td><code title="attr-aria-role-heading">heading</code> role, with the <code title="attr-aria-level">aria-level</code> property set to the element's <a href="#outline-depth">outline depth</a>
                    520: 
                    521:     </td></tr><tr><td><code><a href="semantics.html#the-hgroup-element">hgroup</a></code> element
                    522:      </td><td><code title="attr-aria-role-heading">heading</code> role, with the <code title="attr-aria-level">aria-level</code> property set to the element's <a href="#outline-depth">outline depth</a>
                    523: 
                    524:     </td></tr><tr><td><code><a href="semantics.html#the-hr-element">hr</a></code> element
                    525:      </td><td><code title="attr-aria-role-separator">separator</code> role
                    526: 
                    527:     </td></tr><tr><td><code><a href="text-level-semantics.html#the-img-element">img</a></code> element whose <code title="attr-img-alt"><a href="text-level-semantics.html#attr-img-alt">alt</a></code> attribute's value is empty
                    528:      </td><td><code title="attr-aria-role-presentation">presentation</code> role
                    529: 
                    530:     </td></tr><tr><td><code><a href="forms.html#the-input-element">input</a></code> element with a <code title="attr-input-type"><a href="forms.html#attr-input-type">type</a></code> attribute in the <a href="forms.html#button-state" title="attr-input-type-button">Button</a> state
                    531:      </td><td><code title="attr-aria-role-button">button</code> role
                    532: 
                    533:     </td></tr><tr><td><code><a href="forms.html#the-input-element">input</a></code> element with a <code title="attr-input-type"><a href="forms.html#attr-input-type">type</a></code> attribute in the <a href="forms.html#checkbox-state" title="attr-input-type-checkbox">Checkbox</a> state
                    534:      </td><td><code title="attr-aria-role-checkbox">checkbox</code> role, with the <code title="attr-aria-checked">aria-checked</code> state set to "mixed" if the element's <code title="dom-input-indeterminate"><a href="#dom-input-indeterminate">indeterminate</a></code> IDL attribute is true, or "true" if the element's <a href="#concept-fe-checked" title="concept-fe-checked">checkedness</a> is true, or "false" otherwise
                    535: 
                    536:     </td></tr><tr><td><code><a href="forms.html#the-input-element">input</a></code> element with a <code title="attr-input-type"><a href="forms.html#attr-input-type">type</a></code> attribute in the <a href="forms.html#color-state" title="attr-input-type-color">Color</a> state
                    537:      </td><td>No role
                    538: 
                    539:     </td></tr><tr><td><code><a href="forms.html#the-input-element">input</a></code> element with a <code title="attr-input-type"><a href="forms.html#attr-input-type">type</a></code> attribute in the <a href="forms.html#date-state" title="attr-input-type-date">Date</a> state
                    540:      </td><td>No role, with the <code title="title-aria-readonly">aria-readonly</code> state set to "true" if the element has a <code title="attr-input-readonly"><a href="forms.html#attr-input-readonly">readonly</a></code> attribute
                    541: 
                    542:     </td></tr><tr><td><code><a href="forms.html#the-input-element">input</a></code> element with a <code title="attr-input-type"><a href="forms.html#attr-input-type">type</a></code> attribute in the <a href="forms.html#date-and-time-state" title="attr-input-type-datetime">Date and Time</a> state
                    543:      </td><td>No role, with the <code title="title-aria-readonly">aria-readonly</code> state set to "true" if the element has a <code title="attr-input-readonly"><a href="forms.html#attr-input-readonly">readonly</a></code> attribute
                    544: 
                    545:     </td></tr><tr><td><code><a href="forms.html#the-input-element">input</a></code> element with a <code title="attr-input-type"><a href="forms.html#attr-input-type">type</a></code> attribute in the <a href="forms.html#local-date-and-time-state" title="attr-input-type-datetime-local">Local Date and Time</a> state
                    546:      </td><td>No role, with the <code title="title-aria-readonly">aria-readonly</code> state set to "true" if the element has a <code title="attr-input-readonly"><a href="forms.html#attr-input-readonly">readonly</a></code> attribute
                    547: 
                    548:     </td></tr><tr><td><code><a href="forms.html#the-input-element">input</a></code> element with a <code title="attr-input-type"><a href="forms.html#attr-input-type">type</a></code> attribute in the <a href="forms.html#e-mail-state" title="attr-input-type-email">E-mail</a> state with no <a href="#concept-input-list" title="concept-input-list">suggestions source element</a>
                    549:      </td><td><code title="attr-aria-role-textbox">textbox</code> role, with the <code title="title-aria-readonly">aria-readonly</code> state set to "true" if the element has a <code title="attr-input-readonly"><a href="forms.html#attr-input-readonly">readonly</a></code> attribute
                    550: 
                    551:     </td></tr><tr><td><code><a href="forms.html#the-input-element">input</a></code> element with a <code title="attr-input-type"><a href="forms.html#attr-input-type">type</a></code> attribute in the <a href="forms.html#file-upload-state" title="attr-input-type-file">File Upload</a> state
                    552:      </td><td><code title="attr-aria-role-button">button</code> role
                    553: 
                    554:     </td></tr><tr><td><code><a href="forms.html#the-input-element">input</a></code> element with a <code title="attr-input-type"><a href="forms.html#attr-input-type">type</a></code> attribute in the <a href="forms.html#hidden-state" title="attr-input-type-hidden">Hidden</a> state
                    555:      </td><td>No role
                    556: 
                    557:     </td></tr><tr><td><code><a href="forms.html#the-input-element">input</a></code> element with a <code title="attr-input-type"><a href="forms.html#attr-input-type">type</a></code> attribute in the <a href="forms.html#image-button-state" title="attr-input-type-image">Image Button</a> state
                    558:      </td><td><code title="attr-aria-role-button">button</code> role
                    559: 
                    560:     </td></tr><tr><td><code><a href="forms.html#the-input-element">input</a></code> element with a <code title="attr-input-type"><a href="forms.html#attr-input-type">type</a></code> attribute in the <a href="forms.html#month-state" title="attr-input-type-month">Month</a> state
                    561:      </td><td>No role, with the <code title="title-aria-readonly">aria-readonly</code> state set to "true" if the element has a <code title="attr-input-readonly"><a href="forms.html#attr-input-readonly">readonly</a></code> attribute
                    562: 
                    563:     </td></tr><tr><td><code><a href="forms.html#the-input-element">input</a></code> element with a <code title="attr-input-type"><a href="forms.html#attr-input-type">type</a></code> attribute in the <a href="forms.html#number-state" title="attr-input-type-number">Number</a> state
                    564:      </td><td><code title="attr-aria-role-spinbutton">spinbutton</code> role, with the <code title="title-aria-readonly">aria-readonly</code> state set to "true" if the element has a <code title="attr-input-readonly"><a href="forms.html#attr-input-readonly">readonly</a></code> attribute, the <code title="attr-aria-valuemax">aria-valuemax</code> property set to the element's <a href="#concept-input-max" title="concept-input-max">maximum</a>, the <code title="attr-aria-valuemin">aria-valuemin</code> property set to the element's <a href="#concept-input-min" title="concept-input-min">minimum</a>, and, if the result of applying the <a href="#rules-for-parsing-floating-point-number-values">rules for parsing floating point number values</a> to the element's <a href="#concept-fe-value" title="concept-fe-value">value</a> is a number, with the <code title="attr-aria-valuenow">aria-valuenow</code> property set to that number
                    565: 
                    566:     </td></tr><tr><td><code><a href="forms.html#the-input-element">input</a></code> element with a <code title="attr-input-type"><a href="forms.html#attr-input-type">type</a></code> attribute in the <a href="forms.html#password-state" title="attr-input-type-password">Password</a> state
                    567:      </td><td><code title="attr-aria-role-textbox">textbox</code> role, with the <code title="title-aria-readonly">aria-readonly</code> state set to "true" if the element has a <code title="attr-input-readonly"><a href="forms.html#attr-input-readonly">readonly</a></code> attribute
                    568: 
                    569:     </td></tr><tr><td><code><a href="forms.html#the-input-element">input</a></code> element with a <code title="attr-input-type"><a href="forms.html#attr-input-type">type</a></code> attribute in the <a href="forms.html#radio-button-state" title="attr-input-type-radio">Radio Button</a> state
                    570:      </td><td><code title="attr-aria-role-radio">radio</code> role, with the <code title="attr-aria-checked">aria-checked</code> state set to "true" if the element's <a href="#concept-fe-checked" title="concept-fe-checked">checkedness</a> is true, or "false" otherwise
                    571: 
                    572:     </td></tr><tr><td><code><a href="forms.html#the-input-element">input</a></code> element with a <code title="attr-input-type"><a href="forms.html#attr-input-type">type</a></code> attribute in the <a href="forms.html#range-state" title="attr-input-type-range">Range</a> state
                    573:      </td><td><code title="attr-aria-role-slider">slider</code> role, with the <code title="attr-aria-valuemax">aria-valuemax</code> property set to the element's <a href="#concept-input-max" title="concept-input-max">maximum</a>, the <code title="attr-aria-valuemin">aria-valuemin</code> property set to the element's <a href="#concept-input-min" title="concept-input-min">minimum</a>, and the <code title="attr-aria-valuenow">aria-valuenow</code> property set to the result of applying the <a href="#rules-for-parsing-floating-point-number-values">rules for parsing floating point number values</a> to the element's <a href="#concept-fe-value" title="concept-fe-value">value</a>, if that that results in a number, or the <a href="forms.html#concept-input-value-default-range" title="concept-input-value-default-range">default value</a> otherwise
                    574: 
                    575:     </td></tr><tr><td><code><a href="forms.html#the-input-element">input</a></code> element with a <code title="attr-input-type"><a href="forms.html#attr-input-type">type</a></code> attribute in the <a href="forms.html#reset-button-state" title="attr-input-type-reset">Reset Button</a> state
                    576:      </td><td><code title="attr-aria-role-button">button</code> role
                    577: 
                    578:     </td></tr><tr><td><code><a href="forms.html#the-input-element">input</a></code> element with a <code title="attr-input-type"><a href="forms.html#attr-input-type">type</a></code> attribute in the <a href="forms.html#text-state-and-search-state" title="attr-input-type-search">Search</a> state with no <a href="#concept-input-list" title="concept-input-list">suggestions source element</a>
                    579:      </td><td><code title="attr-aria-role-textbox">textbox</code> role, with the <code title="title-aria-readonly">aria-readonly</code> state set to "true" if the element has a <code title="attr-input-readonly"><a href="forms.html#attr-input-readonly">readonly</a></code> attribute
                    580: 
                    581:     </td></tr><tr><td><code><a href="forms.html#the-input-element">input</a></code> element with a <code title="attr-input-type"><a href="forms.html#attr-input-type">type</a></code> attribute in the <a href="forms.html#submit-button-state" title="attr-input-type-submit">Submit Button</a> state
                    582:      </td><td><code title="attr-aria-role-button">button</code> role
                    583: 
                    584:     </td></tr><tr><td><code><a href="forms.html#the-input-element">input</a></code> element with a <code title="attr-input-type"><a href="forms.html#attr-input-type">type</a></code> attribute in the <a href="forms.html#telephone-state" title="attr-input-type-tel">Telephone</a> state with no <a href="#concept-input-list" title="concept-input-list">suggestions source element</a>
                    585:      </td><td><code title="attr-aria-role-textbox">textbox</code> role, with the <code title="title-aria-readonly">aria-readonly</code> state set to "true" if the element has a <code title="attr-input-readonly"><a href="forms.html#attr-input-readonly">readonly</a></code> attribute
                    586: 
                    587:     </td></tr><tr><td><code><a href="forms.html#the-input-element">input</a></code> element with a <code title="attr-input-type"><a href="forms.html#attr-input-type">type</a></code> attribute in the <a href="forms.html#text-state-and-search-state" title="attr-input-type-text">Text</a> state with no <a href="#concept-input-list" title="concept-input-list">suggestions source element</a>
                    588:      </td><td><code title="attr-aria-role-textbox">textbox</code> role, with the <code title="title-aria-readonly">aria-readonly</code> state set to "true" if the element has a <code title="attr-input-readonly"><a href="forms.html#attr-input-readonly">readonly</a></code> attribute
                    589: 
                    590:     </td></tr><tr><td><code><a href="forms.html#the-input-element">input</a></code> element with a <code title="attr-input-type"><a href="forms.html#attr-input-type">type</a></code> attribute in the <a href="forms.html#text-state-and-search-state" title="attr-input-type-text">Text</a>, <a href="forms.html#text-state-and-search-state" title="attr-input-type-search">Search</a>, <a href="forms.html#telephone-state" title="attr-input-type-tel">Telephone</a>, <a href="forms.html#url-state" title="attr-input-type-url">URL</a>, or <a href="forms.html#e-mail-state" title="attr-input-type-email">E-mail</a> states with a <a href="#concept-input-list" title="concept-input-list">suggestions source element</a>
                    591:      </td><td><code title="attr-aria-role-combobox">combobox</code> role, with the <code title="attr-aria-owns">aria-owns</code> property set to the same value as the <code title="attr-input-list"><a href="forms.html#attr-input-list">list</a></code> attribute, and the <code title="title-aria-readonly">aria-readonly</code> state set to "true" if the element has a <code title="attr-input-readonly"><a href="forms.html#attr-input-readonly">readonly</a></code> attribute
                    592: 
                    593:     </td></tr><tr><td><code><a href="forms.html#the-input-element">input</a></code> element with a <code title="attr-input-type"><a href="forms.html#attr-input-type">type</a></code> attribute in the <a href="forms.html#time-state" title="attr-input-type-time">Time</a> state
                    594:      </td><td>No role, with the <code title="title-aria-readonly">aria-readonly</code> state set to "true" if the element has a <code title="attr-input-readonly"><a href="forms.html#attr-input-readonly">readonly</a></code> attribute
                    595: 
                    596:     </td></tr><tr><td><code><a href="forms.html#the-input-element">input</a></code> element with a <code title="attr-input-type"><a href="forms.html#attr-input-type">type</a></code> attribute in the <a href="forms.html#url-state" title="attr-input-type-url">URL</a> state with no <a href="#concept-input-list" title="concept-input-list">suggestions source element</a>
                    597:      </td><td><code title="attr-aria-role-textbox">textbox</code> role, with the <code title="title-aria-readonly">aria-readonly</code> state set to "true" if the element has a <code title="attr-input-readonly"><a href="forms.html#attr-input-readonly">readonly</a></code> attribute
                    598: 
                    599:     </td></tr><tr><td><code><a href="forms.html#the-input-element">input</a></code> element with a <code title="attr-input-type"><a href="forms.html#attr-input-type">type</a></code> attribute in the <a href="forms.html#week-state" title="attr-input-type-week">Week</a> state
                    600:      </td><td>No role, with the <code title="title-aria-readonly">aria-readonly</code> state set to "true" if the element has a <code title="attr-input-readonly"><a href="forms.html#attr-input-readonly">readonly</a></code> attribute
                    601: 
                    602:     </td></tr><tr><td><code><a href="semantics.html#the-link-element">link</a></code> element that represents a <a href="history.html#hyperlink">hyperlink</a>
                    603:      </td><td><code title="attr-aria-role-link">link</code> role
                    604: 
                    605:     </td></tr><tr><td><code><a href="interactive-elements.html#menus">menu</a></code> element with a <code title="attr-menu-type"><a href="interactive-elements.html#attr-menu-type">type</a></code> attribute in the <a href="interactive-elements.html#context-menu-state" title="context menu state">context menu</a> state
                    606:      </td><td>No role
                    607: 
                    608:     </td></tr><tr><td><code><a href="interactive-elements.html#menus">menu</a></code> element with a <code title="attr-menu-type"><a href="interactive-elements.html#attr-menu-type">type</a></code> attribute in the <a href="interactive-elements.html#list-state" title="list state">list</a> state
                    609:      </td><td><code title="attr-aria-role-menu">menu</code> role
                    610: 
                    611:     </td></tr><tr><td><code><a href="interactive-elements.html#menus">menu</a></code> element with a <code title="attr-menu-type"><a href="interactive-elements.html#attr-menu-type">type</a></code> attribute in the <a href="interactive-elements.html#toolbar-state" title="toolbar state">toolbar</a> state
                    612:      </td><td><code title="attr-aria-role-toolbar">toolbar</code> role
                    613: 
                    614:     </td></tr><tr><td><code><a href="semantics.html#the-nav-element">nav</a></code> element
                    615:      </td><td><code title="attr-aria-role-navigation">navigation</code> role
                    616: 
                    617:     </td></tr><tr><td><code><a href="forms.html#the-option-element">option</a></code> element that is in a <a href="forms.html#concept-select-option-list" title="concept-select-option-list">list of options</a> or that represents a suggestion in a <code><a href="forms.html#the-datalist-element">datalist</a></code> element
                    618:      </td><td><code title="attr-aria-role-option">option</code> role, with the <code title="attr-aria-selected">aria-selected</code> state set to "true" if the element's <a href="#concept-option-selectedness" title="concept-option-selectedness">selectedness</a> is true, or "false" otherwise.
                    619: 
                    620:     </td></tr><tr><td><code><a href="text-level-semantics.html#the-progress-element">progress</a></code> element
                    621:      </td><td><code title="attr-aria-role-progressbar">progressbar</code> role, with, if the progress bar is determinate, the <code title="attr-aria-valuemax">aria-valuemax</code> property set to the maximum value of the progress bar, the <code title="attr-aria-valuemin">aria-valuemin</code> property set to zero, and the <code title="attr-aria-valuenow">aria-valuenow</code> property set to the current value of the progress bar
                    622: 
                    623:     </td></tr><tr><td><code><a href="forms.html#the-select-element">select</a></code> element with a <code title="attr-select-multiple"><a href="forms.html#attr-select-multiple">multiple</a></code> attribute
                    624:      </td><td><code title="attr-aria-role-listbox">listbox</code> role, with the <code title="attr-aria-multiselectable">aria-multiselectable</code> property set to "true"
                    625: 
                    626:     </td></tr><tr><td><code><a href="forms.html#the-select-element">select</a></code> element with no <code title="attr-select-multiple"><a href="forms.html#attr-select-multiple">multiple</a></code> attribute
                    627:      </td><td><code title="attr-aria-role-listbox">listbox</code> role, with the <code title="attr-aria-multiselectable">aria-multiselectable</code> property set to "false"
                    628: 
                    629:     </td></tr><tr><td><code><a href="tabular-data.html#the-td-element">td</a></code> element
                    630:      </td><td><code title="attr-aria-role-gridcell">gridcell</code> role, with the <code title="attr-aria-labelledby">aria-labelledby</code> property set to the value of the <code title="attr-tdth-headers"><a href="tabular-data.html#attr-tdth-headers">headers</a></code> attribute, if any
                    631: 
                    632:     </td></tr><tr><td><code><a href="forms.html#the-textarea-element">textarea</a></code> element
                    633:      </td><td><code title="attr-aria-role-textbox">textbox</code> role, with the <code title="attr-aria-multiline">aria-multiline</code> property set to "true", and the <code title="title-aria-readonly">aria-readonly</code> state set to "true" if the element has a <code title="attr-textarea-readonly"><a href="forms.html#attr-textarea-readonly">readonly</a></code> attribute
                    634: 
                    635:     </td></tr><tr><td><code><a href="tabular-data.html#the-th-element">th</a></code> element that is neither a <a href="#column-header">column header</a> nor a <a href="#row-header">row header</a>
                    636:      </td><td><code title="attr-aria-role-gridcell">gridcell</code> role, with the <code title="attr-aria-labelledby">aria-labelledby</code> property set to the value of the <code title="attr-tdth-headers"><a href="tabular-data.html#attr-tdth-headers">headers</a></code> attribute, if any
                    637: 
                    638:     </td></tr><tr><td><code><a href="tabular-data.html#the-th-element">th</a></code> element that is a <a href="#column-header">column header</a>
                    639:      </td><td><code title="attr-aria-role-columnheader">columnheader</code> role, with the <code title="attr-aria-labelledby">aria-labelledby</code> property set to the value of the <code title="attr-tdth-headers"><a href="tabular-data.html#attr-tdth-headers">headers</a></code> attribute, if any
                    640: 
                    641:     </td></tr><tr><td><code><a href="tabular-data.html#the-th-element">th</a></code> element that is a <a href="#row-header">row header</a>
                    642:      </td><td><code title="attr-aria-role-rowheader">rowheader</code> role, with the <code title="attr-aria-labelledby">aria-labelledby</code> property set to the value of the <code title="attr-tdth-headers"><a href="tabular-data.html#attr-tdth-headers">headers</a></code> attribute, if any
                    643: 
                    644:     </td></tr><tr><td><code><a href="tabular-data.html#the-tr-element">tr</a></code> element
                    645:      </td><td><code title="attr-aria-role-row">row</code> role
                    646: 
                    647:     </td></tr><tr><td>An element that <a href="interactive-elements.html#concept-command" title="concept-command">defines a command</a>, whose <a href="interactive-elements.html#command-facet-type" title="command-facet-type">Type</a> facet is "checkbox", and that is a descendant of a <code><a href="interactive-elements.html#menus">menu</a></code> element whose <code title="attr-menu-type"><a href="interactive-elements.html#attr-menu-type">type</a></code> attribute in the <a href="interactive-elements.html#list-state" title="list state">list</a> state
                    648:      </td><td><code title="attr-aria-role-menuitemcheckbox">menuitemcheckbox</code> role, with the <code title="attr-aria-checked">aria-checked</code> state set to "true" if the command's <a href="interactive-elements.html#command-facet-checkedstate" title="command-facet-checkedstate">Checked State</a> facet is true, and "false" otherwise
                    649: 
                    650:     </td></tr><tr><td>An element that <a href="interactive-elements.html#concept-command" title="concept-command">defines a command</a>, whose <a href="interactive-elements.html#command-facet-type" title="command-facet-type">Type</a> facet is "command", and that is a descendant of a <code><a href="interactive-elements.html#menus">menu</a></code> element whose <code title="attr-menu-type"><a href="interactive-elements.html#attr-menu-type">type</a></code> attribute in the <a href="interactive-elements.html#list-state" title="list state">list</a> state
                    651:      </td><td><code title="attr-aria-role-menuitem">menuitem</code> role
                    652: 
                    653:     </td></tr><tr><td>An element that <a href="interactive-elements.html#concept-command" title="concept-command">defines a command</a>, whose <a href="interactive-elements.html#command-facet-type" title="command-facet-type">Type</a> facet is "radio", and that is a descendant of a <code><a href="interactive-elements.html#menus">menu</a></code> element whose <code title="attr-menu-type"><a href="interactive-elements.html#attr-menu-type">type</a></code> attribute in the <a href="interactive-elements.html#list-state" title="list state">list</a> state
                    654:      </td><td><code title="attr-aria-role-menuitemradio">menuitemradio</code> role, with the <code title="attr-aria-checked">aria-checked</code> state set to "true" if the command's <a href="interactive-elements.html#command-facet-checkedstate" title="command-facet-checkedstate">Checked State</a> facet is true, and "false" otherwise
                    655: 
                    656:     </td></tr><tr><td>Elements that are <a href="forms.html#concept-fe-disabled" title="concept-fe-disabled">disabled</a>
                    657:      </td><td>The <code title="title-aria-disabled">aria-disabled</code> state set to "true"
                    658: 
                    659:     </td></tr><tr><td>Elements that are <a href="forms.html#concept-input-required" title="concept-input-required">required</a>
                    660:      </td><td>The <code title="title-aria-required">aria-required</code> state set to "true"
                    661: 
                    662:   </td></tr></tbody></table><p>Some <a href="infrastructure.html#html-elements">HTML elements</a> have native semantics that can be
                    663:   overridden. The following table lists these elements,
                    664:   along with the restrictions that apply to those elements. Each
                    665:   language feature (element or attribute) in a cell in the first
                    666:   column implies, unless otherwise overriden, the ARIA semantic (role,
                    667:   state, or property) given in the cell in the second column of the
                    668:   same row, but this semantic may be overridden under the conditions
                    669:   listed in the cell in the third column of that row.</p><table><thead><tr><th>Language feature
                    670:      </th><th>Default implied ARIA semantic
                    671:      </th><th>Restrictions
                    672: 
                    673:    </th></tr></thead><tbody><tr><td><code><a href="semantics.html#the-article-element">article</a></code> element
                    674:      </td><td><code title="attr-aria-role-article">article</code> role
                    675:      </td><td>Role must be either <code title="attr-aria-role-article">article</code>, <code title="attr-aria-role-document">document</code>, <code title="attr-aria-role-application">application</code>, or <code title="attr-aria-role-main">main</code>
                    676: 
                    677:     </td></tr><tr><td><code><a href="semantics.html#the-aside-element">aside</a></code> element
                    678:      </td><td><code title="attr-aria-role-note">note</code> role
                    679:      </td><td>Role must be either <code title="attr-aria-role-note">note</code>, <code title="attr-aria-role-complementary">complementary</code>, or <code title="attr-aria-role-search">search</code>
                    680: 
                    681:     </td></tr><tr><td><code><a href="semantics.html#the-header-element">header</a></code> element
                    682:      </td><td>No role
                    683:      </td><td>If specified, role must be <code title="attr-aria-role-banner">banner</code>
                    684: 
                    685:     </td></tr><tr><td><code><a href="semantics.html#the-li-element">li</a></code> element whose parent is an <code><a href="semantics.html#the-ol-element">ol</a></code> or <code><a href="semantics.html#the-ul-element">ul</a></code> element
                    686:      </td><td><code title="attr-aria-role-listitem">listitem</code> role
                    687:      </td><td>Role must be either <code title="attr-aria-role-listitem">listitem</code> or <code title="attr-aria-role-treeitem">treeitem</code>
                    688: 
                    689:     </td></tr><tr><td><code><a href="semantics.html#the-ol-element">ol</a></code> element
                    690:      </td><td><code title="attr-aria-role-list">list</code> role
                    691:      </td><td>Role must be either <code title="attr-aria-role-list">list</code>, <code title="attr-aria-role-tree">tree</code>, or <code title="attr-aria-role-directory">directory</code>
                    692: 
                    693:     </td></tr><tr><td><code><a href="forms.html#the-output-element">output</a></code> element
                    694:      </td><td><code title="attr-aria-role-status">status</code> role
                    695:      </td><td>No restrictions
                    696: 
                    697:     </td></tr><tr><td><code><a href="semantics.html#the-section-element">section</a></code> element
                    698:      </td><td><code title="attr-aria-role-region">region</code> role
                    699:      </td><td>Role must be either <code title="attr-aria-role-region">region</code>, <code title="attr-aria-role-document">document</code>, <code title="attr-aria-role-application">application</code>, <code title="attr-aria-role-contentinfo">contentinfo</code>, <code title="attr-aria-role-main">main</code>, <code title="attr-aria-role-search">search</code>, <code title="attr-aria-role-alert">alert</code>, <code title="attr-aria-role-dialog">dialog</code>, <code title="attr-aria-role-alertdialog">alertdialog</code>, <code title="attr-aria-role-status">status</code>, or <code title="attr-aria-role-log">log</code>
                    700: 
                    701:     </td></tr><tr><td><code><a href="tabular-data.html#the-table-element">table</a></code> element
                    702:      </td><td><code title="attr-aria-role-grid">grid</code> role
                    703:      </td><td>Role must be either <code title="attr-aria-role-grid">grid</code> or <code title="attr-aria-role-treegrid">treegrid</code>
                    704: 
                    705:     </td></tr><tr><td><code><a href="semantics.html#the-ul-element">ul</a></code> element
                    706:      </td><td><code title="attr-aria-role-list">list</code> role
                    707:      </td><td>Role must be either <code title="attr-aria-role-list">list</code> or <code title="attr-aria-role-tree">tree</code>, or <code title="attr-aria-role-directory">directory</code>
                    708: 
                    709:     </td></tr><tr><td><a href="dom.html#the-body-element">The body element</a>
                    710:      </td><td><code title="attr-aria-role-document">document</code> role
                    711:      </td><td>Role must be either <code title="attr-aria-role-document">document</code> or <code title="attr-aria-role-application">application</code>
                    712: 
                    713:   </td></tr></tbody></table><h3 id="apis-in-html-documents"><span class="secno">3.3 </span>APIs in HTML documents</h3><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p><p>For <a href="dom.html#html-documents">HTML documents</a>, and for <a href="infrastructure.html#html-elements">HTML
                    714:   elements</a> in <a href="dom.html#html-documents">HTML documents</a>, certain APIs defined
                    715:   in DOM Core become case-insensitive or case-changing, as sometimes
                    716:   defined in DOM Core, and as summarized  below. <a href="references.html#refsDOMCORE">[DOMCORE]</a></p><p>This does not apply to <a href="dom.html#xml-documents">XML documents</a> or to elements
                    717:   that are not in the <a href="#html-namespace-0">HTML namespace</a> despite being in
                    718:   <a href="dom.html#html-documents">HTML documents</a>.</p><dl><dt><code title="">Element.tagName</code> and <code title="">Node.nodeName</code></dt>
                    719: 
                    720:    <dd>
                    721: 
                    722:     <p>These attributes must<a href="#converted-to-ascii-uppercase">converted to ASCII uppercase</a>, regardless of the case
                    723:     with which they were created.</p>
                    724: 
                    725:    </dd>
                    726: 
                    727: 
                    728:    <dt><code title="">Document.createElement()</code></dt>
                    729: 
                    730:    <dd>
                    731: 
                    732:     <p>The canonical form of HTML markup is all-lowercase; thus, this
                    733:     method will <a href="#converted-to-ascii-lowercase" title="converted to ASCII lowercase">lowercase</a>
                    734:     the argument before creating the requisite element. .</p>
                    735: 
                    736:     <p class="note">This doesn't apply to <code title="">Document.createElementNS()</code>. Thus, it is possible,
                    737:     by passing this last method a tag name in the wrong case, to
                    738:     create an element that claims to have the tag name of an element
                    739:     defined in this specification, but doesn't support its interfaces,
                    740:     because it really has another tag name not accessible from the DOM
                    741:     APIs.</p>
                    742: 
                    743:    </dd>
                    744: 
                    745: 
                    746:    <dt><code title="">Element.setAttribute()</code></dt>
                    747:    <dt><code title="">Element.setAttributeNode()</code></dt>
                    748: 
                    749:    <dd>
                    750: 
                    751:     <p>Attribute names are <a href="#converted-to-ascii-lowercase">converted to ASCII lowercase</a>.</p>
                    752: 
                    753:     
                    754: 
                    755:     <p class="note">This doesn't apply to <code title="">Document.setAttributeNS()</code> and <code title="">Document.setAttributeNodeNS()</code>.</p>
                    756: 
                    757:    </dd>
                    758: 
                    759: 
                    760:    <dt><code title="">Element.getAttribute()</code></dt>
                    761:    <dt><code title="">Element.getAttributeNode()</code></dt>
                    762: 
                    763:    <dd>
                    764: 
                    765:     <p>Attribute names are <a href="#converted-to-ascii-lowercase">converted to ASCII lowercase</a>.</p>
                    766: 
                    767:     
                    768: 
                    769:     <p class="note">This doesn't apply to <code title="">Document.getAttributeNS()</code> and <code title="">Document.getAttributeNodeNS()</code>.</p>
                    770: 
                    771:    </dd>
                    772: 
                    773: 
                    774:    <dt><code title="">Document.getElementsByTagName()</code></dt>
                    775:    <dt><code title="">Element.getElementsByTagName()</code></dt>
                    776: 
                    777:    <dd>
                    778: 
                    779:     <p>HTML elements match by lower-casing the argument before
                    780:     comparison, elements from other namespaces are treated as in XML
                    781:     (case-sensitively).</p>
                    782: 
                    783:     
                    784: 
                    785:     <p class="note">Thus, in an <a href="dom.html#html-documents" title="HTML documents">HTML
                    786:     document</a> with nodes in multiple namespaces, these methods
                    787:     will effectively be both case-sensitive and case-insensitive at
                    788:     the same time.</p>
                    789: 
                    790:    </dd>
                    791: 
                    792: 
                    793:   </dl><h3 id="dynamic-markup-insertion"><span class="secno">3.4 </span><dfn>Dynamic markup insertion</dfn></h3><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p><p class="note">APIs for dynamically inserting markup into the
                    794:   document interact with the parser, and thus their behavior varies
                    795:   depending on whether they are used with <a href="dom.html#html-documents">HTML documents</a>
                    796:   (and the <a href="#html-parser">HTML parser</a>) or XHTML in <a href="dom.html#xml-documents">XML
                    797:   documents</a> (and the <a href="#xml-parser">XML parser</a>).</p><h4 id="opening-the-input-stream"><span class="secno">3.4.1 </span>Opening the input stream</h4><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p><p>The <dfn id="dom-document-open" title="dom-document-open"><code>open()</code></dfn>
                    798:   method comes in several variants with different numbers of
                    799:   arguments.</p><dl class="domintro"><dt><var title="">document</var> = <var title="">document</var> . <code title="dom-document-open"><a href="#dom-document-open">open</a></code>( [ <var title="">type</var> [, <var title="">replace</var> ] ] )</dt>
                    800: 
                    801:    <dd>
                    802: 
                    803:     <p>Causes the <code>Document</code> to be replaced in-place, as if
                    804:     it was a new <code>Document</code> object, but reusing the
                    805:     previous object, which is then returned.</p>
                    806: 
                    807:     <p>If the <var title="">type</var> argument is omitted or has the
                    808:     value "<code><a href="iana.html#text-html">text/html</a></code>", then the resulting
                    809:     <code>Document</code> has an HTML parser associated with it, which
                    810:     can be given data to parse using <code title="dom-document-write"><a href="#dom-document-write">document.write()</a></code>. Otherwise, all
                    811:     content passed to <code title="dom-document-write"><a href="#dom-document-write">document.write()</a></code> will be parsed
                    812:     as plain text.</p>
                    813: 
                    814:     <p>If the <var title="">replace</var> argument is present and has
                    815:     the value "<code title="">replace</code>", the existing entries in
                    816:     the session history for the <code>Document</code> object are
                    817:     removed.</p>
                    818: 
                    819:     <p>The method has no effect if the <code>Document</code> is still
                    820:     being parsed.</p>
                    821: 
                    822:     <p>Throws an <code><a href="infrastructure.html#invalid_state_err">INVALID_STATE_ERR</a></code> exception if the
                    823:     <code>Document</code> is an <a href="dom.html#xml-documents" title="XML documents">XML
                    824:     document</a>.</p>
                    825: 
                    826:    </dd>
                    827: 
                    828:    <dt><var title="">window</var> = <var title="">document</var> . <code title="dom-document-open"><a href="#dom-document-open">open</a></code>( <var title="">url</var>, <var title="">name</var>, <var title="">features</var> [, <var title="">replace</var> ] )</dt>
                    829: 
                    830:    <dd>
                    831: 
                    832:     <p>Works like the <code title="dom-open"><a href="#dom-open">window.open()</a></code>
                    833:     method.</p>
                    834: 
                    835:    </dd>
                    836: 
                    837:   </dl><h4 id="closing-the-input-stream"><span class="secno">3.4.2 </span>Closing the input stream</h4><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p><dl class="domintro"><dt><var title="">document</var> . <code title="dom-document-close"><a href="#dom-document-close">close</a></code>()</dt>
                    838: 
                    839:    <dd>
                    840: 
                    841:     <p>Closes the input stream that was opened by the <code title="dom-document-open"><a href="#dom-document-open">document.open()</a></code> method.</p>
                    842: 
                    843:     <p>Throws an <code><a href="infrastructure.html#invalid_state_err">INVALID_STATE_ERR</a></code> exception if the
                    844:     <code>Document</code> is an <a href="dom.html#xml-documents" title="XML documents">XML
                    845:     document</a>.</p>
                    846: 
                    847:    </dd>
                    848: 
                    849:   </dl><h4 id="document.write"><span class="secno">3.4.3 </span><code title="dom-document-write"><a href="#dom-document-write">document.write()</a></code></h4><dl class="domintro"><dt><var title="">document</var> . <code title="dom-document-write"><a href="#dom-document-write">write</a></code>(<var title="">text</var>...)</dt>
                    850: 
                    851:    <dd>
                    852: 
                    853:     <p>Adds the given string(s) to the <code>Document</code>'s input
                    854:     stream. If necessary, calls the <code title="dom-document-open"><a href="#dom-document-open">open()</a></code> method implicitly
                    855:     first.</p>
                    856: 
                    857:     <p>This method throws an <code><a href="infrastructure.html#invalid_access_err">INVALID_ACCESS_ERR</a></code> exception
                    858:     when invoked on <a href="dom.html#xml-documents">XML documents</a>.</p>
                    859: 
                    860:    </dd>
                    861: 
                    862:   </dl><h4 id="document.writeln"><span class="secno">3.4.4 </span><code title="dom-document-writeln"><a href="#dom-document-writeln">document.writeln()</a></code></h4><dl class="domintro"><dt><var title="">document</var> . <code title="dom-document-writeln"><a href="#dom-document-writeln">writeln</a></code>(<var title="">text</var>...)</dt>
                    863: 
                    864:    <dd>
                    865: 
                    866:     <p>Adds the given string(s) to the <code>Document</code>'s input
                    867:     stream, followed by a newline character. If necessary, calls the
                    868:     <code title="dom-document-open"><a href="#dom-document-open">open()</a></code> method implicitly
                    869:     first.</p>
                    870: 
                    871:     <p>This method throws an <code><a href="infrastructure.html#invalid_access_err">INVALID_ACCESS_ERR</a></code> exception
                    872:     when invoked on <a href="dom.html#xml-documents">XML documents</a>.</p>
                    873: 
                    874:    </dd>
                    875: 
                    876:   </dl><h4 id="innerhtml"><span class="secno">3.4.5 </span><code title="dom-innerHTML"><a href="#dom-innerhtml">innerHTML</a></code></h4><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p><p>The <dfn id="dom-innerhtml" title="dom-innerHTML"><code>innerHTML</code></dfn> IDL
                    877:   attribute represents the markup of the node's contents.</p><dl class="domintro"><dt><var title="">document</var> . <code title="dom-innerHTML"><a href="#dom-innerhtml">innerHTML</a></code> [ = <var title="">value</var> ]</dt>
                    878: 
                    879:    <dd>
                    880: 
                    881:     <p>Returns a fragment of HTML or XML that represents the
                    882:     <code>Document</code>.</p>
                    883: 
                    884:     <p>Can be set, to replace the <code>Document</code>'s contents
                    885:     with the result of parsing the given string.</p>
                    886: 
                    887:     <p>In the case of <a href="dom.html#xml-documents">XML documents</a>, will throw an
                    888:     <code><a href="infrastructure.html#invalid_state_err">INVALID_STATE_ERR</a></code> if the <code>Document</code> cannot
                    889:     be serialized to XML, and a <code><a href="infrastructure.html#syntax_err">SYNTAX_ERR</a></code> if the given
                    890:     string is not well-formed.</p>
                    891: 
                    892:    </dd>
                    893: 
                    894:    <dt><var title="">element</var> . <code title="dom-innerHTML"><a href="#dom-innerhtml">innerHTML</a></code> [ = <var title="">value</var> ]</dt>
                    895: 
                    896:    <dd>
                    897: 
                    898:     <p>Returns a fragment of HTML or XML that represents the element's
                    899:     contents.</p>
                    900: 
                    901:     <p>Can be set, to replace the contents of the element with nodes
                    902:     parsed from the given string.</p>
                    903: 
                    904:     <p>In the case of <a href="dom.html#xml-documents">XML documents</a>, will throw an
                    905:     <code><a href="infrastructure.html#invalid_state_err">INVALID_STATE_ERR</a></code> if the element cannot be serialized
                    906:     to XML, and a <code><a href="infrastructure.html#syntax_err">SYNTAX_ERR</a></code> if the given string is not
                    907:     well-formed.</p>
                    908: 
                    909:    </dd>
                    910: 
                    911:   </dl><h4 id="outerhtml"><span class="secno">3.4.6 </span><code title="dom-outerHTML"><a href="#dom-outerhtml">outerHTML</a></code></h4><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p><p>The <dfn id="dom-outerhtml" title="dom-outerHTML"><code>outerHTML</code></dfn> IDL
                    912:   attribute represents the markup of the element and its contents.</p><dl class="domintro"><dt><var title="">element</var> . <code title="dom-outerHTML"><a href="#dom-outerhtml">outerHTML</a></code> [ = <var title="">value</var> ]</dt>
                    913: 
                    914:    <dd>
                    915: 
                    916:     <p>Returns a fragment of HTML or XML that represents the element
                    917:     and its contents.</p>
                    918: 
                    919:     <p>Can be set, to replace the element with nodes parsed from the
                    920:     given string.</p>
                    921: 
                    922:     <p>In the case of <a href="dom.html#xml-documents">XML documents</a>, will throw an
                    923:     <code><a href="infrastructure.html#invalid_state_err">INVALID_STATE_ERR</a></code> if the element cannot be serialized
                    924:     to XML, and a <code><a href="infrastructure.html#syntax_err">SYNTAX_ERR</a></code> if the given string is not
                    925:     well-formed.</p>
                    926: 
                    927:     <p>Throws a <code><a href="infrastructure.html#no_modification_allowed_err">NO_MODIFICATION_ALLOWED_ERR</a></code> exception if
                    928:     the parent of the element is the <code>Document</code>
                    929:     node.</p>
                    930: 
                    931:    </dd>
                    932: 
                    933:   </dl><h4 id="insertadjacenthtml"><span class="secno">3.4.7 </span><code title="dom-insertAdjacentHTML"><a href="#dom-insertadjacenthtml">insertAdjacentHTML()</a></code></h4><dl class="domintro"><dt><var title="">element</var> . <code title="dom-insertAdjacentHTML"><a href="#dom-insertadjacenthtml">insertAdjacentHTML</a></code>(<var title="">position</var>, <var title="">text</var>)</dt>
                    934: 
                    935:    <dd>
                    936: 
                    937:     <p>Parses the given string <var title="">text</var> as HTML or XML
                    938:     and inserts the resulting nodes into the tree in the position
                    939:     given by the <var title="">position</var> argument, as
                    940:     follows:</p>
                    941: 
                    942:     <dl><dt>"beforebegin"</dt>
                    943:      <dd>Before the element itself.</dd>
                    944:      <dt>"afterbegin"</dt>
                    945:      <dd>Just inside the element, before its first child.</dd>
                    946:      <dt>"beforeend"</dt>
                    947:      <dd>Just inside the element, after its last child.</dd>
                    948:      <dt>"afterend"</dt>
                    949:      <dd>After the element itself.</dd>
                    950:     </dl><p>Throws a <code><a href="infrastructure.html#syntax_err">SYNTAX_ERR</a></code> exception the arguments have
                    951:     invalid values (e.g., in the case of <a href="dom.html#xml-documents">XML documents</a>,
                    952:     if the given string is not well-formed).</p>
                    953: 
                    954:     <p>Throws a <code><a href="infrastructure.html#no_modification_allowed_err">NO_MODIFICATION_ALLOWED_ERR</a></code> exception if
                    955:     the given position isn't possible (e.g. inserting elements after
                    956:     the root element of a <code>Document</code>).</p>
                    957: 
                    958:    </dd>
                    959: 
                    960:   </dl></body></html>

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