.pre_loader {
    background-image: url('/ui2/images/s7.gif');
    background-repeat: no-repeat;
    background-attachment: scroll;
    background-position: center 300px;
    background-color: #a6a6a6;
    /* IE 8 */
    -ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=50)";

    /* IE 5-7 */
    filter: alpha(opacity=50);

    /* Netscape */
    -moz-opacity: 0.5;

    /* Safari 1.x */
    -khtml-opacity: 0.5;

    /* Good browsers */
    opacity: 0.5;
    height:100%;
    position:fixed;
    top:0;
    width:100%;
    z-index:9999999 !important;
}