Opacity兼容 

#footer a:focus img { 
  opacity: 0.6; 
  -ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=60)"; /* IE 8 hack */ 
  filter: alpha(opacity = 60); /* IE 5-7 hack */
 }
posted @ 2011-12-04 20:09  wkylin  阅读(1108)  评论(0)  编辑  收藏  举报