#spinner {
    display: none;
    background-color: #FFF;
    height: 100%;
    left: 0;
    position: fixed;
    top: 0;
    width: 100%;
    opacity: 0.6;
}

#spinner_center {
    display: none;
    height: 100px;
    left: 50%;
    opacity: 1;
    position: fixed;
    top: 50%;
    width: 100px;
}