.imageLoading {
    background: url(/custom/varela/imagenes/loading.gif);
    z-index: 99998;
    height: 150px;
    width: 200px;
    opacity: 0.7;
    background-size: contain;
    display: inline-block;
    position: absolute;
    left: 45%;
    top: 20%;
    background-repeat: no-repeat !important;
}