.vmLoadingDiv {
    display:    none;
    position:   fixed;
    z-index:    1000;
    top:        0;
    left:       0;
    height:     100%;
    width:      100%;
    background: rgba( 255, 255, 255, .8 )
    url('../images/vm-preloader.gif')
    50% 45%
    no-repeat;
}

.vmLoading {
    overflow: hidden;
}


.vmLoading .vmLoadingDiv {
    display: block;
}
.vmLoadingDiv .vmLoadingDivMsg {
    position: relative;
    top: 50%;
}