1、实例源码

<!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>


2、实例结果

CSS3的[att=val]选择器_3c


3、说明

     [att=val]，att代表属性，val代表属性值