1. Example source code
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>CSS3的[att=val]选择器</title><style type="text/css"> [id=div_border]{ background-color:#C00; width:110px; font-family:微软雅黑; font-size:18px; font-size-adjust:!important; font-stretch:expanded; font-style:oblique; font-variant:inherit; font-weight:bolder; }</style></head><body> <div id="div_border"> <ol> <li>星期一</li> <li>星期二</li> <li>星期三</li> <li>星期四</li> <li>星期五</li> <li>星期六</li> <li>星期日</li> </ol> </div></body></html>
3. Description
[att=val], att represents the attribute, and val represents the attribute value