- From: Michael Smith via cvs-syncmail <cvsmail@w3.org>
- Date: Sat, 10 Dec 2011 12:19:44 +0000
- To: public-html-commits@w3.org
Update of /sources/public/html5/spec
In directory hutz:/tmp/cvs-serv6162
Added Files:
the-h1-element.html the-h2-element.html the-h3-element.html
the-h4-element.html the-h5-element.html the-h6-element.html
the-sub-element.html the-sup-element.html
Log Message:
new
--- NEW FILE: the-h4-element.html ---
<!DOCTYPE html>
<html lang="en-US-x-Hixie"><head><title>4.4.6 The h1, h2, h3, h4, h5, and h6 elements — HTML5</title><style type="text/css">
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<link href="the-aside-element.html" title="4.4.5 The aside element" rel="prev">
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<link href="the-hgroup-element.html" title="4.4.7 The hgroup element" rel="next">
</head><body class="split chapter"><div class="head" id="head">
<p><a href="http://www.w3.org/"><img alt="W3C" height="48" src="http://www.w3.org/Icons/w3c_home" width="72"></a></p>
<h1>HTML5</h1>
<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><p>This is revision 1.5469.</p>
<h2 class="no-num no-toc" id="editor-s-draft-9-december-2011">Editor's Draft 9 December 2011</h2>
</div><nav class="prev_next">
<a href="the-aside-element.html">← 4.4.5 The aside element</a> –
<a href="index.html#contents">Table of contents</a> –
<a href="the-hgroup-element.html">4.4.7 The hgroup element →</a>
</nav>
<h4 id="the-h1-h2-h3-h4-h5-and-h6-elements"><span class="secno">4.4.6 </span>The <dfn id="the-h1-element"><code>h1</code></dfn>, <dfn id="the-h2-element"><code>h2</code></dfn>, <dfn id="the-h3-element"><code>h3</code></dfn>, <dfn id="the-h4-element"><code>h4</code></dfn>, <dfn id="the-h5-element"><code>h5</code></dfn>, and <dfn id="the-h6-element"><code>h6</code></dfn> elements</h4><dl class="element"><dt>Categories</dt>
<dd><a href="content-models.html#flow-content">Flow content</a>.</dd>
<dd><a href="content-models.html#heading-content">Heading content</a>.</dd>
<dd><a href="content-models.html#palpable-content">Palpable content</a>.</dd>
<dt>Contexts in which this element can be used:</dt>
<dd>As a child of an <code><a href="the-hgroup-element.html#the-hgroup-element">hgroup</a></code> element.</dd>
<dd>Where <a href="content-models.html#flow-content">flow content</a> is expected.</dd>
<dt>Content model:</dt>
<dd><a href="content-models.html#phrasing-content">Phrasing content</a>.</dd>
<dt>Content attributes:</dt>
<dd><a href="global-attributes.html#global-attributes">Global attributes</a></dd>
<dt>DOM interface:</dt>
<dd>
<pre class="idl">interface <dfn id="htmlheadingelement">HTMLHeadingElement</dfn> : <a href="elements.html#htmlelement">HTMLElement</a> {};</pre>
</dd>
</dl><p>These elements <a href="rendering.html#represents" title="represents">represent</a> headings
for their sections.</p><p>The semantics and meaning of these elements are defined in the
section on <a href="headings-and-sections.html#headings-and-sections">headings and sections</a>.</p><p>These elements have a <dfn id="rank">rank</dfn> given by the number in
their name. The <code><a href="#the-h1-h2-h3-h4-h5-and-h6-elements">h1</a></code> element is said to have the highest
rank, the <code><a href="#the-h1-h2-h3-h4-h5-and-h6-elements">h6</a></code> element has the lowest rank, and two
elements with the same name have equal rank.</p><div class="example">
<p>These two snippets are equivalent:</p>
<pre><body>
<h1>Let's call it a draw(ing surface)</h1>
<h2>Diving in</h2>
<h2>Simple shapes</h2>
<h2>Canvas coordinates</h2>
<h3>Canvas coordinates diagram</h3>
<h2>Paths</h2>
</body></pre>
<pre><body>
<h1>Let's call it a draw(ing surface)</h1>
<section>
<h1>Diving in</h1>
</section>
<section>
<h1>Simple shapes</h1>
</section>
<section>
<h1>Canvas coordinates</h1>
<section>
<h1>Canvas coordinates diagram</h1>
</section>
</section>
<section>
<h1>Paths</h1>
</section>
</body></pre>
</div></body></html>
--- NEW FILE: the-h2-element.html ---
<!DOCTYPE html>
<html lang="en-US-x-Hixie"><head><title>4.4.6 The h1, h2, h3, h4, h5, and h6 elements — HTML5</title><style type="text/css">
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h5, h6 { margin: 2.5em 0 1em; }
h1 + h2, h1 + h2 + h2 { margin: 0.75em 0 0.75em; }
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<link href="the-hgroup-element.html" title="4.4.7 The hgroup element" rel="next">
</head><body class="split chapter"><div class="head" id="head">
<p><a href="http://www.w3.org/"><img alt="W3C" height="48" src="http://www.w3.org/Icons/w3c_home" width="72"></a></p>
<h1>HTML5</h1>
<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><p>This is revision 1.5469.</p>
<h2 class="no-num no-toc" id="editor-s-draft-9-december-2011">Editor's Draft 9 December 2011</h2>
</div><nav class="prev_next">
<a href="the-aside-element.html">← 4.4.5 The aside element</a> –
<a href="index.html#contents">Table of contents</a> –
<a href="the-hgroup-element.html">4.4.7 The hgroup element →</a>
</nav>
<h4 id="the-h1-h2-h3-h4-h5-and-h6-elements"><span class="secno">4.4.6 </span>The <dfn id="the-h1-element"><code>h1</code></dfn>, <dfn id="the-h2-element"><code>h2</code></dfn>, <dfn id="the-h3-element"><code>h3</code></dfn>, <dfn id="the-h4-element"><code>h4</code></dfn>, <dfn id="the-h5-element"><code>h5</code></dfn>, and <dfn id="the-h6-element"><code>h6</code></dfn> elements</h4><dl class="element"><dt>Categories</dt>
<dd><a href="content-models.html#flow-content">Flow content</a>.</dd>
<dd><a href="content-models.html#heading-content">Heading content</a>.</dd>
<dd><a href="content-models.html#palpable-content">Palpable content</a>.</dd>
<dt>Contexts in which this element can be used:</dt>
<dd>As a child of an <code><a href="the-hgroup-element.html#the-hgroup-element">hgroup</a></code> element.</dd>
<dd>Where <a href="content-models.html#flow-content">flow content</a> is expected.</dd>
<dt>Content model:</dt>
<dd><a href="content-models.html#phrasing-content">Phrasing content</a>.</dd>
<dt>Content attributes:</dt>
<dd><a href="global-attributes.html#global-attributes">Global attributes</a></dd>
<dt>DOM interface:</dt>
<dd>
<pre class="idl">interface <dfn id="htmlheadingelement">HTMLHeadingElement</dfn> : <a href="elements.html#htmlelement">HTMLElement</a> {};</pre>
</dd>
</dl><p>These elements <a href="rendering.html#represents" title="represents">represent</a> headings
for their sections.</p><p>The semantics and meaning of these elements are defined in the
section on <a href="headings-and-sections.html#headings-and-sections">headings and sections</a>.</p><p>These elements have a <dfn id="rank">rank</dfn> given by the number in
their name. The <code><a href="#the-h1-h2-h3-h4-h5-and-h6-elements">h1</a></code> element is said to have the highest
rank, the <code><a href="#the-h1-h2-h3-h4-h5-and-h6-elements">h6</a></code> element has the lowest rank, and two
elements with the same name have equal rank.</p><div class="example">
<p>These two snippets are equivalent:</p>
<pre><body>
<h1>Let's call it a draw(ing surface)</h1>
<h2>Diving in</h2>
<h2>Simple shapes</h2>
<h2>Canvas coordinates</h2>
<h3>Canvas coordinates diagram</h3>
<h2>Paths</h2>
</body></pre>
<pre><body>
<h1>Let's call it a draw(ing surface)</h1>
<section>
<h1>Diving in</h1>
</section>
<section>
<h1>Simple shapes</h1>
</section>
<section>
<h1>Canvas coordinates</h1>
<section>
<h1>Canvas coordinates diagram</h1>
</section>
</section>
<section>
<h1>Paths</h1>
</section>
</body></pre>
</div></body></html>
--- NEW FILE: the-h5-element.html ---
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<link href="the-aside-element.html" title="4.4.5 The aside element" rel="prev">
<link href="index.html#contents" title="Table of contents" rel="contents">
<link href="the-hgroup-element.html" title="4.4.7 The hgroup element" rel="next">
</head><body class="split chapter"><div class="head" id="head">
<p><a href="http://www.w3.org/"><img alt="W3C" height="48" src="http://www.w3.org/Icons/w3c_home" width="72"></a></p>
<h1>HTML5</h1>
<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><p>This is revision 1.5469.</p>
<h2 class="no-num no-toc" id="editor-s-draft-9-december-2011">Editor's Draft 9 December 2011</h2>
</div><nav class="prev_next">
<a href="the-aside-element.html">← 4.4.5 The aside element</a> –
<a href="index.html#contents">Table of contents</a> –
<a href="the-hgroup-element.html">4.4.7 The hgroup element →</a>
</nav>
<h4 id="the-h1-h2-h3-h4-h5-and-h6-elements"><span class="secno">4.4.6 </span>The <dfn id="the-h1-element"><code>h1</code></dfn>, <dfn id="the-h2-element"><code>h2</code></dfn>, <dfn id="the-h3-element"><code>h3</code></dfn>, <dfn id="the-h4-element"><code>h4</code></dfn>, <dfn id="the-h5-element"><code>h5</code></dfn>, and <dfn id="the-h6-element"><code>h6</code></dfn> elements</h4><dl class="element"><dt>Categories</dt>
<dd><a href="content-models.html#flow-content">Flow content</a>.</dd>
<dd><a href="content-models.html#heading-content">Heading content</a>.</dd>
<dd><a href="content-models.html#palpable-content">Palpable content</a>.</dd>
<dt>Contexts in which this element can be used:</dt>
<dd>As a child of an <code><a href="the-hgroup-element.html#the-hgroup-element">hgroup</a></code> element.</dd>
<dd>Where <a href="content-models.html#flow-content">flow content</a> is expected.</dd>
<dt>Content model:</dt>
<dd><a href="content-models.html#phrasing-content">Phrasing content</a>.</dd>
<dt>Content attributes:</dt>
<dd><a href="global-attributes.html#global-attributes">Global attributes</a></dd>
<dt>DOM interface:</dt>
<dd>
<pre class="idl">interface <dfn id="htmlheadingelement">HTMLHeadingElement</dfn> : <a href="elements.html#htmlelement">HTMLElement</a> {};</pre>
</dd>
</dl><p>These elements <a href="rendering.html#represents" title="represents">represent</a> headings
for their sections.</p><p>The semantics and meaning of these elements are defined in the
section on <a href="headings-and-sections.html#headings-and-sections">headings and sections</a>.</p><p>These elements have a <dfn id="rank">rank</dfn> given by the number in
their name. The <code><a href="#the-h1-h2-h3-h4-h5-and-h6-elements">h1</a></code> element is said to have the highest
rank, the <code><a href="#the-h1-h2-h3-h4-h5-and-h6-elements">h6</a></code> element has the lowest rank, and two
elements with the same name have equal rank.</p><div class="example">
<p>These two snippets are equivalent:</p>
<pre><body>
<h1>Let's call it a draw(ing surface)</h1>
<h2>Diving in</h2>
<h2>Simple shapes</h2>
<h2>Canvas coordinates</h2>
<h3>Canvas coordinates diagram</h3>
<h2>Paths</h2>
</body></pre>
<pre><body>
<h1>Let's call it a draw(ing surface)</h1>
<section>
<h1>Diving in</h1>
</section>
<section>
<h1>Simple shapes</h1>
</section>
<section>
<h1>Canvas coordinates</h1>
<section>
<h1>Canvas coordinates diagram</h1>
</section>
</section>
<section>
<h1>Paths</h1>
</section>
</body></pre>
</div></body></html>
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<link href="the-aside-element.html" title="4.4.5 The aside element" rel="prev">
<link href="index.html#contents" title="Table of contents" rel="contents">
<link href="the-hgroup-element.html" title="4.4.7 The hgroup element" rel="next">
</head><body class="split chapter"><div class="head" id="head">
<p><a href="http://www.w3.org/"><img alt="W3C" height="48" src="http://www.w3.org/Icons/w3c_home" width="72"></a></p>
<h1>HTML5</h1>
<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><p>This is revision 1.5469.</p>
<h2 class="no-num no-toc" id="editor-s-draft-9-december-2011">Editor's Draft 9 December 2011</h2>
</div><nav class="prev_next">
<a href="the-aside-element.html">← 4.4.5 The aside element</a> –
<a href="index.html#contents">Table of contents</a> –
<a href="the-hgroup-element.html">4.4.7 The hgroup element →</a>
</nav>
<h4 id="the-h1-h2-h3-h4-h5-and-h6-elements"><span class="secno">4.4.6 </span>The <dfn id="the-h1-element"><code>h1</code></dfn>, <dfn id="the-h2-element"><code>h2</code></dfn>, <dfn id="the-h3-element"><code>h3</code></dfn>, <dfn id="the-h4-element"><code>h4</code></dfn>, <dfn id="the-h5-element"><code>h5</code></dfn>, and <dfn id="the-h6-element"><code>h6</code></dfn> elements</h4><dl class="element"><dt>Categories</dt>
<dd><a href="content-models.html#flow-content">Flow content</a>.</dd>
<dd><a href="content-models.html#heading-content">Heading content</a>.</dd>
<dd><a href="content-models.html#palpable-content">Palpable content</a>.</dd>
<dt>Contexts in which this element can be used:</dt>
<dd>As a child of an <code><a href="the-hgroup-element.html#the-hgroup-element">hgroup</a></code> element.</dd>
<dd>Where <a href="content-models.html#flow-content">flow content</a> is expected.</dd>
<dt>Content model:</dt>
<dd><a href="content-models.html#phrasing-content">Phrasing content</a>.</dd>
<dt>Content attributes:</dt>
<dd><a href="global-attributes.html#global-attributes">Global attributes</a></dd>
<dt>DOM interface:</dt>
<dd>
<pre class="idl">interface <dfn id="htmlheadingelement">HTMLHeadingElement</dfn> : <a href="elements.html#htmlelement">HTMLElement</a> {};</pre>
</dd>
</dl><p>These elements <a href="rendering.html#represents" title="represents">represent</a> headings
for their sections.</p><p>The semantics and meaning of these elements are defined in the
section on <a href="headings-and-sections.html#headings-and-sections">headings and sections</a>.</p><p>These elements have a <dfn id="rank">rank</dfn> given by the number in
their name. The <code><a href="#the-h1-h2-h3-h4-h5-and-h6-elements">h1</a></code> element is said to have the highest
rank, the <code><a href="#the-h1-h2-h3-h4-h5-and-h6-elements">h6</a></code> element has the lowest rank, and two
elements with the same name have equal rank.</p><div class="example">
<p>These two snippets are equivalent:</p>
<pre><body>
<h1>Let's call it a draw(ing surface)</h1>
<h2>Diving in</h2>
<h2>Simple shapes</h2>
<h2>Canvas coordinates</h2>
<h3>Canvas coordinates diagram</h3>
<h2>Paths</h2>
</body></pre>
<pre><body>
<h1>Let's call it a draw(ing surface)</h1>
<section>
<h1>Diving in</h1>
</section>
<section>
<h1>Simple shapes</h1>
</section>
<section>
<h1>Canvas coordinates</h1>
<section>
<h1>Canvas coordinates diagram</h1>
</section>
</section>
<section>
<h1>Paths</h1>
</section>
</body></pre>
</div></body></html>
--- NEW FILE: the-sup-element.html ---
<!DOCTYPE html>
<html lang="en-US-x-Hixie"><head><title>4.6.15 The sub and sup elements — HTML5</title><style type="text/css">
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</style><link href="data:text/css," id="complete" rel="stylesheet" title="Complete specification"><link href="data:text/css,.impl%20%7B%20display:%20none;%20%7D%0Ahtml%20%7B%20border:%20solid%20yellow;%20%7D%20.domintro:before%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%20.domintro:before%20%7B%20background:%20%23FFEEEE;%20%7D" id="highlight" rel="alternate stylesheet" title="Highlight implementation requirements"><script type="text/javascript">
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<h1>HTML5</h1>
<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><p>This is revision 1.5469.</p>
<h2 class="no-num no-toc" id="editor-s-draft-9-december-2011">Editor's Draft 9 December 2011</h2>
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<h4 id="the-sub-and-sup-elements"><span class="secno">4.6.15 </span>The <dfn id="the-sub-element"><code>sub</code></dfn> and <dfn id="the-sup-element"><code>sup</code></dfn> elements</h4><dl class="element"><dt>Categories</dt>
<dd><a href="content-models.html#flow-content">Flow content</a>.</dd>
<dd><a href="content-models.html#phrasing-content">Phrasing content</a>.</dd>
<dd><a href="content-models.html#palpable-content">Palpable content</a>.</dd>
<dt>Contexts in which this element can be used:</dt>
<dd>Where <a href="content-models.html#phrasing-content">phrasing content</a> is expected.</dd>
<dt>Content model:</dt>
<dd><a href="content-models.html#phrasing-content">Phrasing content</a>.</dd>
<dt>Content attributes:</dt>
<dd><a href="global-attributes.html#global-attributes">Global attributes</a></dd>
<dt>DOM interface:</dt>
<dd>Use <code><a href="elements.html#htmlelement">HTMLElement</a></code>.</dd>
</dl><p>The <code><a href="#the-sub-and-sup-elements">sup</a></code> element <a href="rendering.html#represents">represents</a> a
superscript and the <code><a href="#the-sub-and-sup-elements">sub</a></code> element <a href="rendering.html#represents">represents</a>
a subscript.</p><p>These elements must be used only to mark up typographical
conventions with specific meanings, not for typographical
presentation for presentation's sake. For example, it would be
inappropriate for the <code><a href="#the-sub-and-sup-elements">sub</a></code> and <code><a href="#the-sub-and-sup-elements">sup</a></code> elements
to be used in the name of the LaTeX document preparation system. In
general, authors should use these elements only if the
<em>absence</em> of those elements would change the meaning of the
content.</p><p>In certain languages, superscripts are part of the typographical
conventions for some abbreviations.</p><div class="example">
<pre><p>The most beautiful women are
<span lang="fr"><abbr>M<sup>lle</sup></abbr> Gwendoline</span> and
<span lang="fr"><abbr>M<sup>me</sup></abbr> Denise</span>.</p></pre>
</div><p>The <code><a href="#the-sub-and-sup-elements">sub</a></code> element can be used inside a
<code><a href="the-var-element.html#the-var-element">var</a></code> element, for variables that have subscripts.</p><div class="example">
<p>Here, the <code><a href="#the-sub-and-sup-elements">sub</a></code> element is used to represents the
subscript that identifies the variable in a family of
variables:</p>
<pre><p>The coordinate of the <var>i</var>th point is
(<var>x<sub><var>i</var></sub></var>, <var>y<sub><var>i</var></sub></var>).
For example, the 10th point has coordinate
(<var>x<sub>10</sub></var>, <var>y<sub>10</sub></var>).</p></pre>
</div><p>Mathematical expressions often use subscripts and superscripts.
Authors are encouraged to use MathML for marking up mathematics, but
authors may opt to use <code><a href="#the-sub-and-sup-elements">sub</a></code> and <code><a href="#the-sub-and-sup-elements">sup</a></code> if
detailed mathematical markup is not desired. <a href="references.html#refsMATHML">[MATHML]</a></p><div class="example">
<pre><var>E</var>=<var>m</var><var>c</var><sup>2</sup></pre>
<pre>f(<var>x</var>, <var>n</var>) = log<sub>4</sub><var>x</var><sup><var>n</var></sup></pre>
</div></body></html>
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<!DOCTYPE html>
<html lang="en-US-x-Hixie"><head><title>4.4.6 The h1, h2, h3, h4, h5, and h6 elements — HTML5</title><style type="text/css">
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<link href="the-aside-element.html" title="4.4.5 The aside element" rel="prev">
<link href="index.html#contents" title="Table of contents" rel="contents">
<link href="the-hgroup-element.html" title="4.4.7 The hgroup element" rel="next">
</head><body class="split chapter"><div class="head" id="head">
<p><a href="http://www.w3.org/"><img alt="W3C" height="48" src="http://www.w3.org/Icons/w3c_home" width="72"></a></p>
<h1>HTML5</h1>
<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><p>This is revision 1.5469.</p>
<h2 class="no-num no-toc" id="editor-s-draft-9-december-2011">Editor's Draft 9 December 2011</h2>
</div><nav class="prev_next">
<a href="the-aside-element.html">← 4.4.5 The aside element</a> –
<a href="index.html#contents">Table of contents</a> –
<a href="the-hgroup-element.html">4.4.7 The hgroup element →</a>
</nav>
<h4 id="the-h1-h2-h3-h4-h5-and-h6-elements"><span class="secno">4.4.6 </span>The <dfn id="the-h1-element"><code>h1</code></dfn>, <dfn id="the-h2-element"><code>h2</code></dfn>, <dfn id="the-h3-element"><code>h3</code></dfn>, <dfn id="the-h4-element"><code>h4</code></dfn>, <dfn id="the-h5-element"><code>h5</code></dfn>, and <dfn id="the-h6-element"><code>h6</code></dfn> elements</h4><dl class="element"><dt>Categories</dt>
<dd><a href="content-models.html#flow-content">Flow content</a>.</dd>
<dd><a href="content-models.html#heading-content">Heading content</a>.</dd>
<dd><a href="content-models.html#palpable-content">Palpable content</a>.</dd>
<dt>Contexts in which this element can be used:</dt>
<dd>As a child of an <code><a href="the-hgroup-element.html#the-hgroup-element">hgroup</a></code> element.</dd>
<dd>Where <a href="content-models.html#flow-content">flow content</a> is expected.</dd>
<dt>Content model:</dt>
<dd><a href="content-models.html#phrasing-content">Phrasing content</a>.</dd>
<dt>Content attributes:</dt>
<dd><a href="global-attributes.html#global-attributes">Global attributes</a></dd>
<dt>DOM interface:</dt>
<dd>
<pre class="idl">interface <dfn id="htmlheadingelement">HTMLHeadingElement</dfn> : <a href="elements.html#htmlelement">HTMLElement</a> {};</pre>
</dd>
</dl><p>These elements <a href="rendering.html#represents" title="represents">represent</a> headings
for their sections.</p><p>The semantics and meaning of these elements are defined in the
section on <a href="headings-and-sections.html#headings-and-sections">headings and sections</a>.</p><p>These elements have a <dfn id="rank">rank</dfn> given by the number in
their name. The <code><a href="#the-h1-h2-h3-h4-h5-and-h6-elements">h1</a></code> element is said to have the highest
rank, the <code><a href="#the-h1-h2-h3-h4-h5-and-h6-elements">h6</a></code> element has the lowest rank, and two
elements with the same name have equal rank.</p><div class="example">
<p>These two snippets are equivalent:</p>
<pre><body>
<h1>Let's call it a draw(ing surface)</h1>
<h2>Diving in</h2>
<h2>Simple shapes</h2>
<h2>Canvas coordinates</h2>
<h3>Canvas coordinates diagram</h3>
<h2>Paths</h2>
</body></pre>
<pre><body>
<h1>Let's call it a draw(ing surface)</h1>
<section>
<h1>Diving in</h1>
</section>
<section>
<h1>Simple shapes</h1>
</section>
<section>
<h1>Canvas coordinates</h1>
<section>
<h1>Canvas coordinates diagram</h1>
</section>
</section>
<section>
<h1>Paths</h1>
</section>
</body></pre>
</div></body></html>
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<link href="the-aside-element.html" title="4.4.5 The aside element" rel="prev">
<link href="index.html#contents" title="Table of contents" rel="contents">
<link href="the-hgroup-element.html" title="4.4.7 The hgroup element" rel="next">
</head><body class="split chapter"><div class="head" id="head">
<p><a href="http://www.w3.org/"><img alt="W3C" height="48" src="http://www.w3.org/Icons/w3c_home" width="72"></a></p>
<h1>HTML5</h1>
<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><p>This is revision 1.5469.</p>
<h2 class="no-num no-toc" id="editor-s-draft-9-december-2011">Editor's Draft 9 December 2011</h2>
</div><nav class="prev_next">
<a href="the-aside-element.html">← 4.4.5 The aside element</a> –
<a href="index.html#contents">Table of contents</a> –
<a href="the-hgroup-element.html">4.4.7 The hgroup element →</a>
</nav>
<h4 id="the-h1-h2-h3-h4-h5-and-h6-elements"><span class="secno">4.4.6 </span>The <dfn id="the-h1-element"><code>h1</code></dfn>, <dfn id="the-h2-element"><code>h2</code></dfn>, <dfn id="the-h3-element"><code>h3</code></dfn>, <dfn id="the-h4-element"><code>h4</code></dfn>, <dfn id="the-h5-element"><code>h5</code></dfn>, and <dfn id="the-h6-element"><code>h6</code></dfn> elements</h4><dl class="element"><dt>Categories</dt>
<dd><a href="content-models.html#flow-content">Flow content</a>.</dd>
<dd><a href="content-models.html#heading-content">Heading content</a>.</dd>
<dd><a href="content-models.html#palpable-content">Palpable content</a>.</dd>
<dt>Contexts in which this element can be used:</dt>
<dd>As a child of an <code><a href="the-hgroup-element.html#the-hgroup-element">hgroup</a></code> element.</dd>
<dd>Where <a href="content-models.html#flow-content">flow content</a> is expected.</dd>
<dt>Content model:</dt>
<dd><a href="content-models.html#phrasing-content">Phrasing content</a>.</dd>
<dt>Content attributes:</dt>
<dd><a href="global-attributes.html#global-attributes">Global attributes</a></dd>
<dt>DOM interface:</dt>
<dd>
<pre class="idl">interface <dfn id="htmlheadingelement">HTMLHeadingElement</dfn> : <a href="elements.html#htmlelement">HTMLElement</a> {};</pre>
</dd>
</dl><p>These elements <a href="rendering.html#represents" title="represents">represent</a> headings
for their sections.</p><p>The semantics and meaning of these elements are defined in the
section on <a href="headings-and-sections.html#headings-and-sections">headings and sections</a>.</p><p>These elements have a <dfn id="rank">rank</dfn> given by the number in
their name. The <code><a href="#the-h1-h2-h3-h4-h5-and-h6-elements">h1</a></code> element is said to have the highest
rank, the <code><a href="#the-h1-h2-h3-h4-h5-and-h6-elements">h6</a></code> element has the lowest rank, and two
elements with the same name have equal rank.</p><div class="example">
<p>These two snippets are equivalent:</p>
<pre><body>
<h1>Let's call it a draw(ing surface)</h1>
<h2>Diving in</h2>
<h2>Simple shapes</h2>
<h2>Canvas coordinates</h2>
<h3>Canvas coordinates diagram</h3>
<h2>Paths</h2>
</body></pre>
<pre><body>
<h1>Let's call it a draw(ing surface)</h1>
<section>
<h1>Diving in</h1>
</section>
<section>
<h1>Simple shapes</h1>
</section>
<section>
<h1>Canvas coordinates</h1>
<section>
<h1>Canvas coordinates diagram</h1>
</section>
</section>
<section>
<h1>Paths</h1>
</section>
</body></pre>
</div></body></html>
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<h1>HTML5</h1>
<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><p>This is revision 1.5469.</p>
<h2 class="no-num no-toc" id="editor-s-draft-9-december-2011">Editor's Draft 9 December 2011</h2>
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<h4 id="the-sub-and-sup-elements"><span class="secno">4.6.15 </span>The <dfn id="the-sub-element"><code>sub</code></dfn> and <dfn id="the-sup-element"><code>sup</code></dfn> elements</h4><dl class="element"><dt>Categories</dt>
<dd><a href="content-models.html#flow-content">Flow content</a>.</dd>
<dd><a href="content-models.html#phrasing-content">Phrasing content</a>.</dd>
<dd><a href="content-models.html#palpable-content">Palpable content</a>.</dd>
<dt>Contexts in which this element can be used:</dt>
<dd>Where <a href="content-models.html#phrasing-content">phrasing content</a> is expected.</dd>
<dt>Content model:</dt>
<dd><a href="content-models.html#phrasing-content">Phrasing content</a>.</dd>
<dt>Content attributes:</dt>
<dd><a href="global-attributes.html#global-attributes">Global attributes</a></dd>
<dt>DOM interface:</dt>
<dd>Use <code><a href="elements.html#htmlelement">HTMLElement</a></code>.</dd>
</dl><p>The <code><a href="#the-sub-and-sup-elements">sup</a></code> element <a href="rendering.html#represents">represents</a> a
superscript and the <code><a href="#the-sub-and-sup-elements">sub</a></code> element <a href="rendering.html#represents">represents</a>
a subscript.</p><p>These elements must be used only to mark up typographical
conventions with specific meanings, not for typographical
presentation for presentation's sake. For example, it would be
inappropriate for the <code><a href="#the-sub-and-sup-elements">sub</a></code> and <code><a href="#the-sub-and-sup-elements">sup</a></code> elements
to be used in the name of the LaTeX document preparation system. In
general, authors should use these elements only if the
<em>absence</em> of those elements would change the meaning of the
content.</p><p>In certain languages, superscripts are part of the typographical
conventions for some abbreviations.</p><div class="example">
<pre><p>The most beautiful women are
<span lang="fr"><abbr>M<sup>lle</sup></abbr> Gwendoline</span> and
<span lang="fr"><abbr>M<sup>me</sup></abbr> Denise</span>.</p></pre>
</div><p>The <code><a href="#the-sub-and-sup-elements">sub</a></code> element can be used inside a
<code><a href="the-var-element.html#the-var-element">var</a></code> element, for variables that have subscripts.</p><div class="example">
<p>Here, the <code><a href="#the-sub-and-sup-elements">sub</a></code> element is used to represents the
subscript that identifies the variable in a family of
variables:</p>
<pre><p>The coordinate of the <var>i</var>th point is
(<var>x<sub><var>i</var></sub></var>, <var>y<sub><var>i</var></sub></var>).
For example, the 10th point has coordinate
(<var>x<sub>10</sub></var>, <var>y<sub>10</sub></var>).</p></pre>
</div><p>Mathematical expressions often use subscripts and superscripts.
Authors are encouraged to use MathML for marking up mathematics, but
authors may opt to use <code><a href="#the-sub-and-sup-elements">sub</a></code> and <code><a href="#the-sub-and-sup-elements">sup</a></code> if
detailed mathematical markup is not desired. <a href="references.html#refsMATHML">[MATHML]</a></p><div class="example">
<pre><var>E</var>=<var>m</var><var>c</var><sup>2</sup></pre>
<pre>f(<var>x</var>, <var>n</var>) = log<sub>4</sub><var>x</var><sup><var>n</var></sup></pre>
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Received on Saturday, 10 December 2011 12:20:21 UTC