浏览器:IE
描述:兼容各版本IE的滤镜
IE透明滤镜
filter:alpha(opacity=40); filter: progid: DXImageTransform.Microsoft.Alpha( opacity=40 ); /* IE6, IE7, and IE8 */ -ms-filter : progid:DXImageTransform.Microsoft.Alpha( opacity=40 ); /* IE8 only */