<!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=gb2312" />
<title>关于用CSS区分Firefox、IE6、IE7 knowsky.com</title>
<style type="text/css">
#example{color:red ;}/*firefox*/
* html #example{color:blue;}/*ie6*/
*+html #example{color:green;}/*ie7*/
</style>
</head>
<body>
<div id="example">在FireFox下应为红色，在IE6.0下应为蓝色，在IE7.0下应为绿色。</div>
</body>
</html>