/* scrim that covers the page */
._scrim {
    position: fixed;
    top: 0;
    left: 0;
    height: 100%;
    width: 100%;
    background-color: rgba(0, 0, 0, 0.2);
    z-index: 999;
}

._scrim.spinner{
    background: url("../../img/full-screen-ajax-loading.gif") no-repeat scroll center 50% rgba(0, 0, 0, 0.2);
}