.loader {
    position: fixed;
    left: 0px;
    top: 0px;
    width: 100%;
    height: 100%;
    z-index: 9999;
    filter: alpha(opacity=60);
    opacity: 0.6;
    --moz-opacity: 0.8;
    background: url('/Content/StyleCss/Loader.gif') 50% 50% no-repeat rgb(0,0,0);
    /* background-image: url('Icons/b7C-unscreen.gif') 50% 50% no-repeat rgb(0,0,0);*/
}