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<title>Semantic HTML</title>

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<span id="openzim-page-title" class="mw-page-title-main"><span class="mw-page-title-main">Semantic HTML</span></span>

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</style><div role="note" class="hatnote navigation-not-searchable">"Semantic markup" redirects here. For more general usage, see <a href="Separation_of_content_and_presentation" title="Separation of content and presentation">separation of content and presentation</a>. For semantics in programming languages, see <a href="Semantics_(computer_science)" title="Semantics (computer science)">Semantics (computer science)</a>.</div>

<p><b>Semantic HTML</b> is the use of <a href="HTML" title="HTML">HTML</a> markup to reinforce the <a href="Semantics" title="Semantics">semantics</a>, or meaning, of the information in <a href="Web_page" title="Web page">web pages</a> and <a href="Web_application" title="Web application">web applications</a> rather than merely to define its <a href="Model%E2%80%93view%E2%80%93presenter" title="Model–view–presenter">presentation or look</a>. Semantic HTML is processed by traditional <a href="Web_browser" title="Web browser">web browsers</a> as well as by many other <a href="User_agent" title="User agent">user agents</a>. <a href="Cascading_Style_Sheets" class="mw-redirect" title="Cascading Style Sheets">CSS</a> is used to suggest how it is presented to human users.

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<div class="mw-heading mw-heading2"><h2 id="History">History</h2></div>

<p>HTML has included semantic markup since its inception.<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> In an HTML document, the author may, among other things, "start with a title; add headings and paragraphs; add emphasis to [the] text; add images; add links to other pages; [and] use various kinds of lists".<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup>

</p><p>Various versions of the HTML standard have included <a href="HTML_element#Presentation" title="HTML element">presentational markup</a> such as <code><font></code> (added in HTML 3.2; removed in HTML 4.0 Strict), <code><i></code> (all versions) and <code><center></code> (added in HTML 3.2). There are also the semantically neutral <a href="Span_and_div" class="mw-redirect" title="Span and div">span and div</a> elements. Since the late 1990s when <a href="Cascading_Style_Sheets" class="mw-redirect" title="Cascading Style Sheets">Cascading Style Sheets</a> were beginning to work in most browsers, web authors have been encouraged to avoid the use of presentational HTML markup with a view to the <a href="Separation_of_content_and_presentation" title="Separation of content and presentation">separation of content and presentation</a>.<sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup>

</p><p>In 2001, <a href="Tim_Berners-Lee" title="Tim Berners-Lee">Tim Berners-Lee</a> participated in a discussion of the <a href="Semantic_Web" title="Semantic Web">Semantic Web</a>, where it was presented that intelligent software 'agents' might one day automatically crawl the Web and find, filter and correlate previously unrelated, published facts for the benefit of end users.<sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> Such agents are not commonplace even now, but some of the ideas of <a href="Web_2.0" title="Web 2.0">Web 2.0</a>, <a href="Mashup_(web_application_hybrid)" title="Mashup (web application hybrid)">mashups</a> and <a href="Price_comparison_service" class="mw-redirect" title="Price comparison service">price comparison websites</a> may be coming close. The main difference between these web application hybrids and Berners-Lee's semantic agents lies in the fact that the current <a href="News_aggregator" title="News aggregator">aggregation</a> and hybridisation of information is usually designed in by web developers, who already know the web locations and the <a href="Application_programming_interface" class="mw-redirect" title="Application programming interface">API semantics</a> of the specific data they wish to mash, compare and combine.

</p><p>An important type of web agent that does crawl and read web pages automatically, without prior knowledge of what it might find, is the <a href="Web_crawler" title="Web crawler">web crawler</a> or search-engine spider. These software agents are dependent on the semantic clarity of web pages they find as they use various techniques and <a href="Algorithm" title="Algorithm">algorithms</a> to read and index millions of web pages a day and provide web users with <a href="Web_search_engine" class="mw-redirect" title="Web search engine">search facilities</a>.

</p><p>In order for search-engine spiders to be able to rate the significance of pieces of text they find in HTML documents, and also for those creating mashups and other hybrids, as well as for more automated agents as they are developed, the semantic structures that exist in HTML need to be widely and uniformly applied to bring out the meaning of published information.<sup id="cite_ref-Semantic_Web_Revisted_5-0" class="reference"><a href="#cite_note-Semantic_Web_Revisted-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup>

</p><p>While the true semantic web may depend on complex <a href="Resource_Description_Framework" title="Resource Description Framework">RDF</a> <a href="Ontology_(information_science)" title="Ontology (information science)">ontologies</a> and <a href="Metadata" title="Metadata">metadata</a>, every HTML document makes its contribution to the meaningfulness of the Web by the correct use of headings, lists, titles and other semantic markup wherever possible. This "plain" use of HTML has been called "Plain Old Semantic HTML" or POSH.<sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> The correct use of Web 2.0 'tagging' creates <a href="Folksonomy" title="Folksonomy">folksonomies</a> that may be equally or even more meaningful to many.<sup id="cite_ref-Semantic_Web_Revisted_5-1" class="reference"><a href="#cite_note-Semantic_Web_Revisted-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> <a href="HTML_5" class="mw-redirect" title="HTML 5">HTML 5</a> introduced new semantic elements such as <code><section></code>, <code><article></code>, <code><footer></code>, <code><progress></code>, <code><nav></code>, <code><aside></code>, <code><mark></code>, and <code><time></code>.<sup id="cite_ref-7" class="reference"><a href="#cite_note-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> Overall, the goal of the <a href="W3C" class="mw-redirect" title="W3C">W3C</a> is to slowly introduce more ways for browsers, developers, and crawlers to better distinguish between different types of data, allowing for benefits such as better display on browsers on different devices.

</p><p>Presentational elements were not formally <a href="Deprecation" title="Deprecation">deprecated</a> in HTML 4.01 and XHTML recommendations, but were recommended against. In HTML 5, some of those elements, such as <code><i></code> and <code><b></code>, are still specified as their meaning has been clearly defined "as to be stylistically offset from the normal prose without conveying any extra importance".<sup id="cite_ref-8" class="reference"><a href="#cite_note-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-9" class="reference"><a href="#cite_note-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup>

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<div class="mw-heading mw-heading2"><h2 id="Considerations">Considerations</h2></div>

<p>In cases where a document requires more precise semantics than those expressed in HTML alone, fragments of the document may be enclosed within <code>span</code> or <code>div</code> elements with meaningful class names<sup id="cite_ref-10" class="reference"><a href="#cite_note-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup> such as <code><span class="author"></code> and <code><div class="invoice"></code>. Where these class names are also a <a href="Fragment_identifier" class="mw-redirect" title="Fragment identifier">fragment identifier</a> within a schema or ontology, they may link to a more defined meaning. <a href="Microformat" title="Microformat">Microformats</a> formalise this approach to semantics in HTML.

</p><p>One important restriction of this approach is that such markup based on element inclusion must meet the well-formedness conditions. As these documents are broadly tree-structured, this means that only balanced fragments from a sub-tree can be marked up in this way.<sup id="cite_ref-11" class="reference"><a href="#cite_note-11"><span class="cite-bracket">[</span>11<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-12" class="reference"><a href="#cite_note-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup> A means of marking-up any arbitrary section of HTML would require a mechanism independent of the markup structure itself, such as <a href="XPointer" title="XPointer">XPointer</a>.

</p><p>Good semantic HTML also improves the <a href="Accessibility" title="Accessibility">accessibility</a> of web documents (see also <a href="Web_Content_Accessibility_Guidelines" title="Web Content Accessibility Guidelines">Web Content Accessibility Guidelines</a>). For example, when a screen reader or audio browser can correctly ascertain the structure of a document, it will not waste the visually impaired user's time by reading out repeated or irrelevant information when it has been marked up correctly.

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<div class="mw-heading mw-heading2"><h2 id="Google_"rich_snippets"">Google "rich snippets"</h2></div>

<p>In 2010, <a href="Google" title="Google">Google</a> specified three forms of structured metadata that their systems will use to find structured semantic content within webpages. Such information, when related to reviews, people profiles, business listings, and events will be used by Google to enhance the "snippet", or short piece of quoted text that is shown when the page appears in search listings. Google specifies that that data may be given using <a href="Microdata_(HTML5)" class="mw-redirect" title="Microdata (HTML5)">microdata</a>, <a href="Microformat" title="Microformat">microformats</a> or <a href="RDFa" title="RDFa">RDFa</a>.<sup id="cite_ref-13" class="reference"><a href="#cite_note-13"><span class="cite-bracket">[</span>13<span class="cite-bracket">]</span></a></sup> Microdata is specified inside <code>itemtype</code> and <code>itemprop</code> attributes added to existing HTML elements; microformat keywords are added inside <code>class</code> attributes as discussed above; and RDFa relies on <code>rel</code>, <code><a href="Typeof" title="Typeof">typeof</a></code> and <code>property</code> attributes added to existing elements.<sup id="cite_ref-14" class="reference"><a href="#cite_note-14"><span class="cite-bracket">[</span>14<span class="cite-bracket">]</span></a></sup>

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<ul><li><a href="CP/LD" class="mw-redirect" title="CP/LD">CP/LD</a> (Content Profile/Linked Document)</li>

<li><a href="HTML_element" title="HTML element">HTML elements</a> (complete list)</li>

<li><a href="HTML_landmarks" title="HTML landmarks">HTML landmarks</a></li>

<li><a href="Microdata_(HTML)" title="Microdata (HTML)">Microdata (HTML)</a></li>

<li><a href="Microformat" title="Microformat">Microformat</a></li>

<li><a href="Schema.org" title="Schema.org">schema.org</a> is an initiative launched on 2 June 2011 by Bing, Google and Yahoo!</li>

<li><a href="Semantic_Web" title="Semantic Web">Semantic Web</a></li>

<li><a href="Semantics_(computer_science)" title="Semantics (computer science)">Semantics (computer science)</a></li>

<div class="mw-heading mw-heading2"><h2 id="References">References</h2></div>

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</style><cite id="CITEREFBerners-LeeFischetti2000" class="citation book cs1"><a href="Tim_Berners-Lee" title="Tim Berners-Lee">Berners-Lee, Tim</a>; Fischetti, Mark (2000). <span class="id-lock-registration" title="Free registration required"><a rel="nofollow" class="external text" href="https://archive.org/details/weavingweborigin00bern_0"><i>Weaving the Web: The Original Design and Ultimate Destiny of the World Wide Web by Its Inventor</i></a></span>. San Francisco: Harper. <a href="ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <bdi>978-0062515872</bdi>.</cite></span>

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<li id="cite_note-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-2">^</a></b></span> <span class="reference-text"><cite id="CITEREFRaggett2005" class="citation web cs1"><a href="Dave_Raggett" title="Dave Raggett">Raggett, Dave</a> (24 April 2005). <a rel="nofollow" class="external text" href="https://www.w3.org/MarkUp/Guide/Overview.html">"Getting started with HTML"</a>. <a href="World_Wide_Web_Consortium" title="World Wide Web Consortium">World Wide Web Consortium</a><span class="reference-accessdate">. Retrieved <span class="nowrap">8 December</span> 2010</span>.</cite></span>

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<li id="cite_note-3"><span class="mw-cite-backlink"><b><a href="#cite_ref-3">^</a></b></span> <span class="reference-text"><cite id="CITEREFRaggett2002" class="citation web cs1">Raggett, Dave (8 April 2002). <a rel="nofollow" class="external text" href="https://www.w3.org/MarkUp/Guide/Style.html">"Adding a touch of style"</a>. World Wide Web Consortium<span class="reference-accessdate">. Retrieved <span class="nowrap">8 December</span> 2010</span>.</cite> This article notes that presentational HTML markup may be useful when targeting browsers "before <a href="Netscape_Communicator" title="Netscape Communicator">Netscape 4.0</a> and <a href="Internet_Explorer_4" title="Internet Explorer 4">Internet Explorer 4.0</a>" which were both released in 1997.</span>

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<li id="cite_note-4"><span class="mw-cite-backlink"><b><a href="#cite_ref-4">^</a></b></span> <span class="reference-text"><cite id="CITEREFBerners-LeeHendlerLassila2001" class="citation web cs1">Berners-Lee, Tim; Hendler, James; Lassila, Ora (2001). <a rel="nofollow" class="external text" href="https://www.scientificamerican.com/article/the-semantic-web/">"The Semantic Web"</a>. Scientific American<span class="reference-accessdate">. Retrieved <span class="nowrap">2009-10-02</span></span>.</cite></span>

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<li id="cite_note-Semantic_Web_Revisted-5"><span class="mw-cite-backlink">^ <a href="#cite_ref-Semantic_Web_Revisted_5-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-Semantic_Web_Revisted_5-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><cite id="CITEREFShadboltBerners-LeeHall2006" class="citation web cs1">Shadbolt, Nigel; Berners-Lee, Tim; Hall, Wendy (May–June 2006). <a rel="nofollow" class="external text" href="http://eprints.ecs.soton.ac.uk/12614/1/Semantic_Web_Revisted.pdf">"The Semantic Web Revisited"</a> <span class="cs1-format">(PDF)</span>. IEEE Intelligent Systems<span class="reference-accessdate">. Retrieved <span class="nowrap">8 December</span> 2010</span>.</cite></span>

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<li id="cite_note-6"><span class="mw-cite-backlink"><b><a href="#cite_ref-6">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://microformats.org/wiki/posh">"Plain Old Semantic HTML (POSH)"</a>. <i>Microformats Wiki</i>. microformats community. April 20, 2007<span class="reference-accessdate">. Retrieved <span class="nowrap">May 4,</span> 2013</span>.</cite></span>

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<li id="cite_note-10"><span class="mw-cite-backlink"><b><a href="#cite_ref-10">^</a></b></span> <span class="reference-text">These class names are at best suggestive rather than formally meaningful, unless they are previously shared between both creator and consumer of the content.</span>

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<li id="cite_note-11"><span class="mw-cite-backlink"><b><a href="#cite_ref-11">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.w3.org/TR/2004/REC-xml11-20040204/#dt-wellformed">"Well-Formed XML Documents"</a>. <i>Extensible Markup Language (XML) 1.1</i>. <a href="W3C" class="mw-redirect" title="W3C">W3C</a>.</cite></span>

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<li id="cite_note-12"><span class="mw-cite-backlink"><b><a href="#cite_ref-12">^</a></b></span> <span class="reference-text"><cite class="citation web cs1 cs1-prop-foreign-lang-source"><a rel="nofollow" class="external text" href="https://blog.bendevoficial.com/posts/conceitos-importantes-sobre-html">"Conceitos importantes sobre HTML"</a> (in Spanish). Bendev Junior.</cite></span>

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<li id="cite_note-13"><span class="mw-cite-backlink"><b><a href="#cite_ref-13">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.google.com/support/webmasters/bin/answer.py?answer=99170">"Rich snippets"</a>. <i>Webmaster Central</i><span class="reference-accessdate">. Retrieved <span class="nowrap">26 May</span> 2010</span>.</cite></span>

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<li id="cite_note-14"><span class="mw-cite-backlink"><b><a href="#cite_ref-14">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.google.com/support/webmasters/bin/answer.py?answer=146861">"Businesses and organizations - About organization information"</a>. <i>Webmaster Central</i><span class="reference-accessdate">. Retrieved <span class="nowrap">26 May</span> 2010</span>.</cite></span>

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</ol></div>

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</style><div id="Semantic_Web71" style="font-size:114%;margin:0 4em"><a href="Semantic_Web" title="Semantic Web">Semantic Web</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%">Background</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Database" title="Database">Databases</a></li>

<li><a href="Hypertext" title="Hypertext">Hypertext</a></li>

<li><a href="Internet" title="Internet">Internet</a></li>

<li><a href="Ontology_(information_science)" title="Ontology (information science)">Ontologies</a></li>

<li><a href="Semantics_(computer_science)" title="Semantics (computer science)">Semantics</a></li>

<li><a href="Semantic_network" title="Semantic network">Semantic networks</a></li>

<li><a href="World_Wide_Web" title="World Wide Web">World Wide Web</a></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Sub-topics</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Dataspaces" class="mw-redirect" title="Dataspaces">Dataspaces</a></li>

<li><a href="Hyperdata" title="Hyperdata">Hyperdata</a></li>

<li><a href="Linked_data" title="Linked data">Linked data</a></li>

<li><a href="Rule-based_system" title="Rule-based system">Rule-based systems</a></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Applications</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Semantic_analytics" title="Semantic analytics">Semantic analytics</a></li>

<li><a href="Semantic_computing" title="Semantic computing">Semantic computing</a></li>

<li><a href="Semantic_mapper" title="Semantic mapper">Semantic mapper</a></li>

<li><a href="Semantic_matching" title="Semantic matching">Semantic matching</a></li>

<li><a href="Semantic_publishing" title="Semantic publishing">Semantic publishing</a></li>

<li><a href="Semantic_reasoner" title="Semantic reasoner">Semantic reasoner</a></li>

<li><a href="Semantic_search" title="Semantic search">Semantic search</a></li>

<li><a href="Semantic_service-oriented_architecture" title="Semantic service-oriented architecture">Semantic service-oriented architecture</a></li>

<li><a href="Semantic_wiki" title="Semantic wiki">Semantic wiki</a></li>

<li><a href="Solid_(web_decentralization_project)" title="Solid (web decentralization project)">Solid</a></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Related topics</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Collective_intelligence" title="Collective intelligence">Collective intelligence</a></li>

<li><a href="Description_logic" title="Description logic">Description logic</a></li>

<li><a href="Folksonomy" title="Folksonomy">Folksonomy</a></li>

<li><a href="Geotagging" title="Geotagging">Geotagging</a></li>

<li><a href="Information_architecture" title="Information architecture">Information architecture</a></li>

<li><a href="IXBRL" class="mw-redirect" title="IXBRL">iXBRL</a></li>

<li><a href="Knowledge_extraction" title="Knowledge extraction">Knowledge extraction</a></li>

<li><a href="Knowledge_management" title="Knowledge management">Knowledge management</a></li>

<li><a href="Knowledge_representation_and_reasoning" title="Knowledge representation and reasoning">Knowledge representation and reasoning</a></li>

<li><a href="Library_2.0" title="Library 2.0">Library 2.0</a></li>

<li><a href="Digital_library" title="Digital library">Digital library</a></li>

<li><a href="Digital_humanities" title="Digital humanities">Digital humanities</a></li>

<li><a href="Metadata" title="Metadata">Metadata</a></li>

<li><a href="Reference_(computer_science)" title="Reference (computer science)">References</a></li>

<li><a href="Topic_map" title="Topic map">Topic map</a></li>

<li><a href="Web_engineering" title="Web engineering">Web engineering</a></li>

<li><a href="Web_Science_Trust" title="Web Science Trust">Web Science Trust</a></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Standards</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%">Syntax and supporting technologies</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><small><a href="Semantic_triple" title="Semantic triple">triples</a></small></li>

<li><small><a href="Turtle_(syntax)" title="Turtle (syntax)">Turtle</a></small></li>

<li><small><a href="Notation3" title="Notation3">Notation3</a></small></li>

<li><small><a href="N-Triples" title="N-Triples">N-Triples</a></small></li>

<li><small><a href="TriX_(serialization_format)" title="TriX (serialization format)">TriX</a> (no W3C standard)</small></li></ul></li>

<li><a href="SPARQL" title="SPARQL">SPARQL</a></li>

</ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Schemas, ontologies and rules</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Common_Logic" title="Common Logic">Common Logic</a></li>

<li><a href="Rule_Interchange_Format" title="Rule Interchange Format">Rule Interchange Format</a></li>

<li><a href="Semantic_Web_Rule_Language" title="Semantic Web Rule Language">Semantic Web Rule Language</a></li>

<li><a href="SHACL" title="SHACL">SHACL</a></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Semantic annotation</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="COinS" title="COinS">COinS</a></li>

<li><a href="GRDDL" title="GRDDL">GRDDL</a></li>

<li><a href="Microdata_(HTML)" title="Microdata (HTML)">Microdata</a></li>

<li><a href="Microformat" title="Microformat">Microformats</a></li>

<li><a href="SAWSDL" title="SAWSDL">SAWSDL</a></li>

<li><a href="Facebook_Platform" title="Facebook Platform">Facebook Platform</a></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Common vocabularies</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="BIBFRAME" title="BIBFRAME">BIBFRAME</a></li>

<li><a href="Dublin_Core" title="Dublin Core">Dublin Core</a></li>

<li><a href="Schema.org" title="Schema.org">Schema.org</a></li>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Microformat vocabularies</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="HAtom" title="HAtom">hAtom</a></li>

<li><a href="HCalendar" title="HCalendar">hCalendar</a></li>

<li><a href="HCard" title="HCard">hCard</a></li>

<li><a href="HProduct" title="HProduct">hProduct</a></li>

<li><a href="HRecipe" title="HRecipe">hRecipe</a></li>

<li><a href="HReview" title="HReview">hReview</a></li></ul>

</div></td></tr></tbody></table><div></div></td></tr></tbody></table></div></div><div><div class="zim-footer">

This article is issued from <a class="external text" title="Last edited on 2025-03-21" href="https://en.wikipedia.org/wiki/?title=Semantic_HTML&oldid=1281658031">Wikipedia</a>. The text is available under <a class="external text" href="https://creativecommons.org/licenses/by-sa/4.0/deed.en">Creative Commons Attribution-Share Alike 4.0</a> unless otherwise noted. Additional terms may apply for the media files.

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