如何在IE8设置透明背景
background:rgba(0,0,0,0.5);
filter: progid:DXImageTransform.Microsoft.gradient(startcolorstr=#7F000000,endcolorstr=#7F000000);
-ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=65)"; /*--IE 8 Transparency--*/
background:rgba(0,0,0,0.5);
filter: progid:DXImageTransform.Microsoft.gradient(startcolorstr=#7F000000,endcolorstr=#7F000000);
-ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=65)"; /*--IE 8 Transparency--*/