#loader1 {
    width: 100%;
    height: 100%;
    position: fixed;
    z-index: 9999;
    background: url("../images/loader1.gif") no-repeat center center rgba(0,0,0,0.2)
}

#loader2 {
    width: 100%;
    height: 100%;
    position: fixed;
    z-index: 9998;
    background: url("../images/loader2.gif") no-repeat center center rgba(0,0,0,0.1)
}