<html><head> <title>关于用CSS区分Firefox、IE6、IE7</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>