透明图片的浏览时的透明效果

.touming {

background-repeat:no-repeat;
height:1000px;
width:500px;
}
*html .touming {
 filter:progid:DXImageTransform.Microsoft.AlphaImageLoader(enabled=true, sizingMethod=corp, src='dc4ff78d02bc78b16a64fe4fa7f11348.png');
}

或者

.touming {

background-image：url（dc4ff78d02bc78b16a64fe4fa7f11348.png）；

background-repeat:no-repeat;
height:1000px;
width:500px;
}
*html .touming {
 filter:progid:DXImageTransform.Microsoft.AlphaImageLoader(enabled=true, sizingMethod=corp, src='dc4ff78d02bc78b16a64fe4fa7f11348.png');

background-image：none；
}