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1 | 1 | <!DOCTYPE html> |
2 | 2 | <html xmlns="http://www.w3.org/1999/xhtml"><head><title>User Agent Support Notes for for HTML and XHTML Techniques</title></head><body><h1>User Agent Support Notes for HTML and XHTML Techniques</h1><p>This page documents user agent support notes for <a href="/TR/WCAG20-TECHS/html">HTML and XHTML Techniques</a>.</p><ul class="toc"><li class="toc"><a href="#H24"> Providing text alternatives for the area elements of image maps </a></li><li class="toc"><a href="#H27">Providing text and non-text alternatives for object |
3 | 3 | </a></li><li class="toc"><a href="#H28">Providing definitions for abbreviations by using the abbr and acronym elements</a></li><li class="toc"><a href="#H33">Supplementing link text with the title attribute</a></li><li class="toc"><a href="#H35"> Providing text alternatives on applet elements </a></li><li class="toc"><a href="#H44">Using label elements to associate text labels with form controls</a></li><li class="toc"><a href="#H45">Using longdesc</a></li><li class="toc"><a href="#H46">Using noembed with embed |
4 | | - </a></li><li class="toc"><a href="#H48">Using ol, ul and dl for lists or groups of links</a></li><li class="toc"><a href="#H49">Using semantic markup to mark emphasized or special text</a></li><li class="toc"><a href="#H53">Using the body of the object element</a></li><li class="toc"><a href="#H57"> Using language attributes on the html element </a></li><li class="toc"><a href="#H58">Using language attributes to identify changes in the human language </a></li><li class="toc"><a href="#H59">Using the link element and navigation tools</a></li><li class="toc"><a href="#H60">Using the link element to link to a glossary</a></li><li class="toc"><a href="#H62">Using the ruby element</a></li><li class="toc"><a href="#H63">Using the scope attribute to associate header cells and data cells in data |
| 4 | + </a></li><li class="toc"><a href="#H48">Using ol, ul and dl for lists or groups of links</a></li><li class="toc"><a href="#H49">Using semantic markup to mark emphasized or special text</a></li><li class="toc"><a href="#H53">Using the body of the object element</a></li><li class="toc"><a href="#H57"> Using language attributes on the html element </a></li><li class="toc"><a href="#H58">Using language attributes to identify changes in the human language </a></li><li class="toc"><a href="#H60">Using the link element to link to a glossary</a></li><li class="toc"><a href="#H62">Using the ruby element</a></li><li class="toc"><a href="#H63">Using the scope attribute to associate header cells and data cells in data |
5 | 5 | tables</a></li><li class="toc"><a href="#H64">Using the title attribute of the frame and iframe elements</a></li><li class="toc"><a href="#H65">Using the title attribute to identify form controls when the label element |
6 | 6 | cannot be used</a></li><li class="toc"><a href="#H69">Providing heading elements at the beginning of each section of content</a></li><li class="toc"><a href="#H78">Identifying the purpose of a link using link text combined with its enclosing |
7 | 7 | paragraph</a></li><li class="toc"><a href="#H80">Identifying the purpose of a link using link text combined with the preceding |
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74 | 74 | </p></li><li><p>Most screen readers do not provide automatic notification about <code>em</code>, <code>strong</code>, <code>b</code>, or <code>i</code>. |
75 | 75 | </p></li><li><p>JAWS contains support for <code>blockquote</code> and <code>cite</code>. WindowEyes contains support for <code>blockquote</code>, <code>q</code> and <code>cite</code>. </p></li><li><p>Firefox 1.0 (Windows) and higher, Opera 7.54 (Windows) and higher, Mozilla 1.7.3 (Windows) and higher automatically generate quotes around <code>q</code> elements, but Internet Explorer 6 for Windows does not. |
76 | 76 | </p></li></ul></div></section><section id="H53"><h2><a href="http://www.w3.org/TR/WCAG20-TECHS/H53.html">H53</a>: Using the body of the object element</h2><div class="ua-issue"><p>This technique is not supported well by assistive technologies and cross-browser |
77 | | - support is irregular.</p></div></section><section id="H57"><h2><a href="http://www.w3.org/TR/WCAG20-TECHS/H57.html">H57</a>: Using language attributes on the html element </h2><div class="ua-issue"><p>Additional subtags for region, script, variant or other aspects may lead to errors in language switching in older versions of some screenreaders.</p></div><div class="ua-issue"><p>JAWS 8.0 can be configured to change language automatically on the basis of the lang attribute. However, it only switches amongst major languages as indicated by the primary code. If a regional language variant is indicated with a language subcode, JAWS will use the default variant for which it is configured.</p></div></section><section id="H58"><h2><a href="http://www.w3.org/TR/WCAG20-TECHS/H58.html">H58</a>: Using language attributes to identify changes in the human language </h2><div class="ua-issue"><p>Additional subtags for region, script, variant or other aspects may lead to errors in language switching in older versions of some screenreaders.</p></div><div class="ua-issue"><p>JAWS 8.0 can be configured to change language automatically on the basis of the lang attribute. However, it only switches amongst major languages as indicated by the primary code. If a regional language variant is indicated with a language subcode, JAWS will use the default variant for which it is configured.</p></div></section><section id="H59"><h2><a href="http://www.w3.org/TR/WCAG20-TECHS/H59.html">H59</a>: Using the link element and navigation tools</h2><div class="ua-issue"><ul><li><p>The link element has inconsistent user agent and assistive technology support. </p></li><li><p>Some user agents provide an optional navigation bar which will display the |
78 | | - information specified in the link element. Current versions of the Mozilla and Opera |
79 | | - browsers provide this functionality. IE 6.0 and Firefox 1.5 do not offer this feature |
80 | | - but it may be available through extensions or add-ons.</p><p>See <a href="//www.subotnik.net/html/link">The 'link'-Element in (X)HTML</a> for |
81 | | - more information on browser support for <code>link</code>.</p></li></ul></div></section><section id="H60"><h2><a href="http://www.w3.org/TR/WCAG20-TECHS/H60.html">H60</a>: Using the link element to link to a glossary</h2><div class="ua-issue"><p>Some user agents provide an optional navigation bar which will display the |
| 77 | + support is irregular.</p></div></section><section id="H57"><h2><a href="http://www.w3.org/TR/WCAG20-TECHS/H57.html">H57</a>: Using language attributes on the html element </h2><div class="ua-issue"><p>Additional subtags for region, script, variant or other aspects may lead to errors in language switching in older versions of some screenreaders.</p></div><div class="ua-issue"><p>JAWS 8.0 can be configured to change language automatically on the basis of the lang attribute. However, it only switches amongst major languages as indicated by the primary code. If a regional language variant is indicated with a language subcode, JAWS will use the default variant for which it is configured.</p></div></section><section id="H58"><h2><a href="http://www.w3.org/TR/WCAG20-TECHS/H58.html">H58</a>: Using language attributes to identify changes in the human language </h2><div class="ua-issue"><p>Additional subtags for region, script, variant or other aspects may lead to errors in language switching in older versions of some screenreaders.</p></div><div class="ua-issue"><p>JAWS 8.0 can be configured to change language automatically on the basis of the lang attribute. However, it only switches amongst major languages as indicated by the primary code. If a regional language variant is indicated with a language subcode, JAWS will use the default variant for which it is configured.</p></div></section><section id="H60"><h2><a href="http://www.w3.org/TR/WCAG20-TECHS/H60.html">H60</a>: Using the link element to link to a glossary</h2><div class="ua-issue"><p>Some user agents provide an optional navigation bar which will display the |
82 | 78 | information specified in the <code>link</code> element. Current versions of the Mozilla |
83 | 79 | and Opera browsers provide this functionality. IE 6.0 and Firefox 1.5 do not offer |
84 | 80 | this feature but it may be available through extensions or add-ons. See <a href="http://www.subotnik.net/html/link">The 'link'-Element in (X)HTML</a> for |
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