.__jquery-loading-mask {
    position: fixed;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;

    z-index: 99999999;
    text-align: center;

    background: url("mask.png");
    color: #fff;

    display: none;

    vertical-align: middle;
}

.__jquery-loading-mask tbody,
.__jquery-loading-mask tr,
.__jquery-loading-mask td {
    height: 100%;
}