CSS Transparency (Cross Browser)

CSS Transparency (Cross Browser)

.transparent {
        /* Required for IE 5, 6, 7 */
        /* ...or something to trigger hasLayout, like zoom: 1; */
        width: 100%; 

        /* Theoretically for IE 8 & 9 (more valid) */
        /* ...but not required as filter works too */
        /* should come BEFORE filter */
        -ms-filter:"progid:DXImageTransform.Microsoft.Alpha(Opacity=50)";

        /* This works in IE 8 & 9 too */
        /* ... but also 5, 6, 7 */
        filter: alpha(opacity=50);

        /* Older than Firefox 0.9 */
        -moz-opacity:0.5;

        /* Safari 1.x (pre WebKit!) */
        -khtml-opacity: 0.5;

        /* Modern!
        /* Firefox 0.9+, Safari 2?, Chrome any?
        /* Opera 9+, IE 9+ */
        opacity: 0.5;
}