<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>网页特效-用CSS控制图片透明度</title>
</head>
<body>
<style>
body{ font-size:12px;}
#top{position:absolute;}
#top a img{-moz-opacity:0.5; filter:alpha(opacity=50);border:0px;}
#top a:hover{font-size:9px;}
#top a:hover img{-moz-opacity:0.5; filter:alpha(opacity=80);cursor:hand;}
</style>
<div>
<div id="top"><a href="http://www.jb200.com" target="_blank"><img src=/html/small/1237987364.gif></a></div>
这里是一些文字</div>
</body>
</html>
