Article introduction of Wulin.com (www.vevb.com): Web accessibility instructions.
W3C requirements
Must have DOCTYPE Character encoding must be specified language
The lang attribute must be specified for each page's html tag, <html xml:lang=zh lang=zh> Linear reading
Not used as layout When using positioning, remove the css to see if the reading order of the content is meaningful. Title hn menu and navigation
ul is the most suitable element for navigation, followed by ol Recommended navigation structure:
<h2 class=offscreen ></h2><!--h2~h6 is next to ul or ol, so that it will be considered navigation bar, and the hn here appears in front of h1 and is considered to meet the requirements-->
<ul>
<a href=#>Column 1 <a href=#>Column 2 </ul>
/*css style*/
.offscreen {
position: absolute;
top: -30em;
left: -300em;
}
Text style list link image Objects Form frame event accesskey attribute zoom
-webkit-text-size-adjust:none is prohibited, and -webkit-text-size-adjust:100% is recommended to ensure the font ratio on small-sized IOS devices. Using -webkit-text-size-adjust:none in chrome to implement text less than 12px must not be important information color
