首页 » HTML对于透明的支持

.opacity {
    /* Required for IE 5, 6, 7 */
    /* ...or something to trigger hasLayout, like zoom: 1; */
    width:300px;
    height:300px;
    line-height:300px;
    text-align:center;
    background:#000;
    color:#fff;
    /* older safari/Chrome browsers */
    -webkit-opacity: 0.5;
    /* Netscape and Older than Firefox 0.9 */
    -moz-opacity: 0.5;
    /* Safari 1.x (pre WebKit!) */
    -khtml-opacity: 0.5;
    /* IE9 + etc...modern browsers */
    opacity: .5;
    /* IE 4-9 */
    filter:alpha(opacity=50);
    /*This works in IE 8 & 9 too*/
    -ms-filter:"progid:DXImageTransform.Microsoft.Alpha(Opacity=50)";
    /*IE4-IE9*/
    filter:progid:DXImageTransform.Microsoft.Alpha(Opacity=50);
}