用css filter做鼠标滑过图片效果

　　首先看个简单的例子吧。

<!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>http://www.cssrain.cn</title> 
<style> 
*{ margin:0; padding:0;} 
body{ margin:0 auto; font-size:12px;} 
.model{margin:0 auto; width:30px;} 
.model a:hover{ text-decoration:none;} 
.model a img{ border:#fff 1px solid;} 
.model a:hover img{ border:#888 1px dotted;} 
.model a span{ padding:0; display:block; width:80px; height:50px; margin-top:-32px; overflow:hidden; line-height:14px; filter: Alpha(opacity=0); opacity:.0; cursor:pointer; text-align:center;} 
</style> 
</head> 
<body> 
<div class="model"><a href="#" _ewebeditor_ta_href="%23"><img src="http://www.cssrain.cn/demo/demo111111.jpg" _ewebeditor_ta_src="http%3A%2F%2Fwww.cssrain.cn%2Fdemo%2Fdemo111111.jpg" border="0" /></a></div> <div class="model"><a href="#" _ewebeditor_ta_href="%23"><img src="http://www.cssrain.cn/demo/demo222222.jpg" _ewebeditor_ta_src="http%3A%2F%2Fwww.cssrain.cn%2Fdemo%2Fdemo222222.jpg" border="0" /></a></div> </body> 
</html>

　　 [Ctrl+A 全选注:如需引入外部Js需刷新才能执行]

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