.sg-spinner {
    position: absolute;
    left: 50%;
    top: 50%;
    z-index: 1010;
    margin-left: -15px;
    margin-top: -16px;
    background-color: transparent;
    width: 30px;
    height: 32px;
    background-image: url('../img/sg-ajax-loader.gif');
    background-repeat: no-repeat;
    background-size: 100%;
}