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[Valid] Markup Validation of https://upload.wikimedia.org/wikipedia/commons/5/51/IBM_logo.svg - W3C Markup Validator
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> <head> <meta http-equiv="Content-Type" content="text/html;charset=utf-8" /> <title> [Valid] Markup Validation of https://upload.wikimedia.org/wikipedia/commons/5/51/IBM_logo.svg - W3C Markup Validator</title> <link rel="icon" href="data:image/png,%89PNG%0D%0A%1A%0A%00%00%00%0DIHDR%00%00%00%10%00%00%00%10%08%02%00%00%00%90%91h6%00%00%00%19IDAT(%91c%0C%DD%10%C5%40%0A%60%22I%F5%A8%86Q%0DCJ%03%00dy%01%7F%0C%9F0%7D%00%00%00%00IEND%AEB%60%82" type="image/png" /> <link rev="made" href="mailto:www-validator@w3.org" /> <link rev="start" href="./" title="Home Page" /> <link rel="stylesheet" href="./style/base" type="text/css" media="all" /> <link rel="stylesheet" href="./style/results" type="text/css" media="all" /> <meta name="keywords" content="HTML, HyperText Markup Language, Validation, W3C Markup Validation Service" /> <meta name="description" content="W3C's easy-to-use markup validation service, based on SGML and XML parsers." /> </head> <body> <div id="banner"> <h1 id="title"> <a href="http://www.w3.org/"><img alt="W3C" width="110" height="61" id="logo" src="./images/w3c.png" /></a> <a href="./"><span>Markup Validation Service</span></a> </h1> <p id="tagline">Check the markup (HTML, XHTML, …) of Web documents</p> </div> <div id="results_container"> <ul class="navbar" id="jumpbar"> <li><strong>Jump To:</strong></li> <li><a title="Information on validation, Icons" href="#congrats">Congratulations · Icons</a></li> <li><a title="Listing of Source Input" href="#source">Source Listing</a></li> </ul> <!-- valid/invalid header and revalidation table --> <h2 class="valid">This document was successfully checked as SVG 1.1 + URL + HTML + MathML 3.0!</h2> <form id="form" method="get" action="check"> <table class="header"> <tr> <th>Result:</th> <td colspan="2" class="valid"> Passed </td> </tr> <tr> <th><label title="Address of Page to Validate" for="uri">Address</label>:</th> <td colspan="2"><input type="text" id="uri" name="uri" value="https://upload.wikimedia.org/wikipedia/commons/5/51/IBM_logo.svg" size="50" /></td> </tr> <tr> <th><label title="Character Encoding" for="charset">Encoding</label>:</th> <td>utf-8</td><td><select name="charset" id="charset"> <option value="(detect automatically)">(detect automatically)</option> <option value="utf-8" >utf-8 (Unicode, worldwide)</option> <option value="utf-16" >utf-16 (Unicode, worldwide)</option> <option value="iso-8859-1" >iso-8859-1 (Western Europe)</option> <option value="iso-8859-2" >iso-8859-2 (Central Europe)</option> <option value="iso-8859-3" >iso-8859-3 (Southern Europe)</option> <option value="iso-8859-4" >iso-8859-4 (North European)</option> <option value="iso-8859-5" >iso-8859-5 (Cyrillic)</option> <option value="iso-8859-6-i" >iso-8859-6-i (Arabic)</option> <option value="iso-8859-7" >iso-8859-7 (Greek)</option> <option value="iso-8859-8" >iso-8859-8 (Hebrew, visual)</option> <option value="iso-8859-8-i" >iso-8859-8-i (Hebrew, logical)</option> <option value="iso-8859-9" >iso-8859-9 (Turkish)</option> <option value="iso-8859-10" >iso-8859-10 (Latin 6)</option> <option value="iso-8859-11" >iso-8859-11 (Latin/Thai)</option> <option value="iso-8859-13" >iso-8859-13 (Latin 7, Baltic Rim)</option> <option value="iso-8859-14" >iso-8859-14 (Latin 8, Celtic)</option> <option value="iso-8859-15" >iso-8859-15 (Latin 9)</option> <option value="iso-8859-16" >iso-8859-16 (Latin 10)</option> <option value="us-ascii" >us-ascii (basic English)</option> <option value="euc-jp" >euc-jp (Japanese, Unix)</option> <option value="shift_jis" >shift_jis (Japanese, Win/Mac)</option> <option value="iso-2022-jp" >iso-2022-jp (Japanese, email)</option> <option value="euc-kr" >euc-kr (Korean)</option> <option value="gb2312" >gb2312 (Chinese, simplified)</option> <option value="gb18030" >gb18030 (Chinese, simplified)</option> <option value="big5" >big5 (Chinese, traditional)</option> <option value="big5-HKSCS" >Big5-HKSCS (Chinese, Hong Kong)</option> <option value="tis-620" >tis-620 (Thai)</option> <option value="koi8-r" >koi8-r (Russian)</option> <option value="koi8-u" >koi8-u (Ukrainian)</option> <option value="iso-ir-111" >iso-ir-111 (Cyrillic KOI-8)</option> <option value="macintosh" >macintosh (MacRoman)</option> <option value="windows-1250" >windows-1250 (Central Europe)</option> <option value="windows-1251" >windows-1251 (Cyrillic)</option> <option value="windows-1252" >windows-1252 (Western Europe)</option> <option value="windows-1253" >windows-1253 (Greek)</option> <option value="windows-1254" >windows-1254 (Turkish)</option> <option value="windows-1255" >windows-1255 (Hebrew)</option> <option value="windows-1256" >windows-1256 (Arabic)</option> <option value="windows-1257" >windows-1257 (Baltic Rim)</option> </select> </td> </tr> <tr> <th><label for="doctype" title="Document Type">Doctype</label>:</th> <td>SVG 1.1 + URL + HTML + MathML 3.0</td><td><select id="doctype" name="doctype"> <option value="Inline">(detect automatically)</option> <option value="HTML5">HTML5 (experimental)</option> <option value="XHTML 1.0 Strict">XHTML 1.0 Strict</option> <option value="XHTML 1.0 Transitional" >XHTML 1.0 Transitional</option> <option value="XHTML 1.0 Frameset" >XHTML 1.0 Frameset</option> <option value="HTML 4.01 Strict" >HTML 4.01 Strict</option> <option value="HTML 4.01 Transitional" >HTML 4.01 Transitional</option> <option value="HTML 4.01 Frameset" >HTML 4.01 Frameset</option> <option value="HTML 4.01 + RDFa 1.1" >HTML 4.01 + RDFa 1.1</option> <option value="HTML 3.2" >HTML 3.2</option> <option value="HTML 2.0" >HTML 2.0</option> <option value="ISO/IEC 15445:2000 ("ISO HTML")" >ISO/IEC 15445:2000 ("ISO HTML")</option> <option value="XHTML 1.1" >XHTML 1.1</option> <option value="XHTML + RDFa" >XHTML + RDFa</option> <option value="XHTML Basic 1.0" >XHTML Basic 1.0</option> <option value="XHTML Basic 1.1" >XHTML Basic 1.1</option> <option value="XHTML Mobile Profile 1.2" >XHTML Mobile Profile 1.2</option> <option value="XHTML-Print 1.0" >XHTML-Print 1.0</option> <option value="XHTML 1.1 plus MathML 2.0" >XHTML 1.1 plus MathML 2.0</option> <option value="XHTML 1.1 plus MathML 2.0 plus SVG 1.1" >XHTML 1.1 plus MathML 2.0 plus SVG 1.1</option> <option value="MathML 2.0" >MathML 2.0</option> <option value="SVG 1.0" >SVG 1.0</option> <option value="SVG 1.1" >SVG 1.1</option> <option value="SVG 1.1 Tiny" >SVG 1.1 Tiny</option> <option value="SVG 1.1 Basic" >SVG 1.1 Basic</option> <option value="SMIL 1.0" >SMIL 1.0</option> <option value="SMIL 2.0" >SMIL 2.0</option> </select> </td> </tr> <tr> <th>Root Element:</th> <td colspan="2">svg</td> </tr> <tr> <th>Root Namespace:</th> <td colspan="2"><a href="http://www.w3.org/2000/svg">http://www.w3.org/2000/svg</a></td> </tr> </table> <div id="w3c-include"> <script src="//www.w3.org/QA/Tools/w3c-include.js"></script> </div> <fieldset id="revalidate_opts"> <legend>Options</legend> <table class="header"> <tr> <td><input type="checkbox" value="1" id="ss" name="ss" checked="checked" /><label title="Show Page Source" for="ss">Show Source</label></td> <td><input type="checkbox" value="1" id="outline" name="outline" /><label title="Show an Outline of the document" for="outline">Show Outline</label></td> <td><input type="radio" name="group" id="group_no" value="0" checked="checked" /><label for="group_no">List Messages Sequentially</label> <input type="radio" name="group" id="group_yes" value="1" /><label for="group_yes">Group Error Messages by Type</label></td> </tr> <tr> <td><input type="checkbox" value="1" id="No200" name="No200" /><label title="Validate also pages for which the HTTP status code indicates an error" for="No200">Validate error pages</label></td> <td><input type="checkbox" value="1" id="verbose" name="verbose" /><label title="Show Verbose Output" for="verbose">Verbose Output</label></td> <td><input id="st" name="st" type="checkbox" value="1" /><label for="st">Clean up Markup with HTML-Tidy</label></td> </tr> </table> <p class="moreinfo"> <a href="docs/users.html#Options">Help</a> on the options is available. </p> <div id="revalidate_button" class="submit_button"> <input type="hidden" value="W3C_Validator/1.3 " id="user-agent" name="user-agent" /> <input type="submit" value="Revalidate" title="Validate this document again" /> </div> </fieldset> </form> <div id="result"> <h3 id="congrats">Congratulations</h3> <p> The document located at <<a href="https://upload.wikimedia.org/wikipedia/commons/5/51/IBM_logo.svg">https://upload.wikimedia.org/wikipedia/commons/5/51/IBM_logo.svg</a>> was successfully checked as SVG 1.1 + URL + HTML + MathML 3.0. This means that the resource in question identified itself as "SVG 1.1 + URL + HTML + MathML 3.0" and that we successfully performed a formal validation of it. The parser implementations we used for this check are based on <a href="http://qa-dev.w3.org/">Compound XML</a> and <a href="http://xmlsoft.org/">libxml2</a> (XML). </p> <h4>Linking to this result</h4> <p> If you would like to create a link to <em>this</em> page (i.e., this validation result) to make it easier to revalidate this page in the future or to allow others to validate your page, the URI is <<a href="https://validator.w3.org/markup/check?uri=https%3A%2F%2Fupload.wikimedia.org%2Fwikipedia%2Fcommons%2F5%2F51%2FIBM_logo.svg;ss=1">https://validator.w3.org/markup/check?uri=https%3A%2F%2Fupload.wikimedia.org%2Fwikipedia%2Fcommons%2F5%2F51%2FIBM_logo.svg;ss=1</a>> (or you can just add the current page to your bookmarks or hotlist). </p> <h4>Validating CSS Style Sheets</h4> <p> If you use <a href="http://www.w3.org/Style/CSS/">CSS</a> in your document, you can <a title="Validate CSS at the W3C CSS Validator" href="http://jigsaw.w3.org/css-validator/validator?uri=https%3A%2F%2Fupload.wikimedia.org%2Fwikipedia%2Fcommons%2F5%2F51%2FIBM_logo.svg">check it</a> using the W3C <a href="http://jigsaw.w3.org/css-validator/">CSS Validation Service</a>. </p> <p class="backtop"><a href="#jumpbar">↑ Top</a></p> </div><!-- end of "result" --> <div id="source"> <h3>Source Listing</h3> <p>Below is the source input I used for this validation:</p> <ol class="source"> <li id="line-1"><?xml version="1.0" encoding="utf-8"?></li> <li id="line-2"><!-- Generator: Adobe Illustrator 23.0.1, SVG Export Plug-In . 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id="line-42"> <polygon points="759.311,347.761 796.157,347.761 806.062,319.83 749.505,319.83"/></li> <li id="line-43"> <polygon points="740.59,294.473 814.877,294.473 824.683,266.541 730.784,266.54"/></li> <li id="line-44"> <polygon points="721.969,241.185 833.597,241.185 843.106,213.253 712.361,213.253"/></li> <li id="line-45"> <polygon points="611.034,134.509 761.093,134.509 751.486,106.577 611.034,106.577"/></li> <li id="line-46"> <polygon points="812.896,81.22 1000,81.22 1000,53.288 822.405,53.288"/></li> <li id="line-47"> </g></li> <li id="line-48"></g></li> <li id="line-49"></svg></li> </ol> <p class="backtop"><a href="#jumpbar">↑ Top</a></p> </div> </div><!-- results_container--> <ul class="navbar" id="menu"> <li><a href="/" accesskey="1" title="Go to the Home Page for The W3C Markup Validation Service">Home</a><span> | </span></li> <li><a href="/about.html" title="Information About this Service">About...</a><span> | </span></li> <li><a href="/whatsnew.html" title="The changes 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