.hostel_bg2 {
    position: absolute;
    z-index: -10;
}

.hostel_bg2:before {
    position: absolute;
    background-size: contain !important;
    width: 100%;
    content: '';
    background: url(/images/Hostel/BG_3.png);
    height: 100%;
    top: 0px;
    bottom: -3300px;
    right:0px;
    left: 100px;
    margin:auto;
    background-repeat:no-repeat;
    z-index:-10 !important;
}