<style type=”text/css”>

 

.img_pro{width:120px;height:120px;overflow:hidden;position:relative;display:table-cell;text-align:center;vertical-align:middle; border:#ccc 1px solid;}

 

.img_pro a{position:static;+position:absolute;top:50%}

 

.img_pro a img{position:static;+position:relative;top:-50%;left:-50%;max-width:120px;_width:expression(this.width>120?”120px”:”atuo”);max-height:120px; _height:expression(this.height>120?”120px”:atuo);}

 

</style>

 

<div src=”http://www.baidu.com/img/baidu_logo.gif” /></a></div>