/*.ui-front{z-index:1000 !important;}*/
#block-screen {
    background: none repeat scroll 0 0 #000000;
    bottom: 0;
    display: none;
    left: 0;
    opacity: 0.9;
    position: fixed;
    right: 0;
    top: 0;
    z-index: 100001;
}