.request-overlay {
    z-index: 9999;
    position: fixed;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    display: block;
    text-align: center;
    background: rgba(200,200,200,0.5) url("../loader.gif") no-repeat center;
}

.modal-backdrop {
    background-color: transparent;
}