.vegas-overlay
{
    background: transparent url(../image/01.png);
    opacity: .5;
    z-index: -7;
    -webkit-backface-visibility: hidden;
}
.vegas-background
{
    image-rendering: optimizeQuality;
    -ms-interpolation-mode: bicubic;
    z-index: -8;/* counteracts global img modification by twitter bootstrap library */
    max-width: none!important;
    -webkit-transform: translate3d(0,0,0);
    background: #000;
}