#ajax-loader {
    width: 100%;
    height: 100%;
    background-image: url('loader.gif');
    position: fixed;
    top: 0;
    background-repeat: no-repeat;
    background-position: center center;
    left: 0;
    background-color: #FFF;
    opacity: .9;
    display: none;
    z-index: 99999999999;
}