#overlay
{
    position: fixed;
    z-index: 99;
    top: 0px;
    left: 0px;
    background-color: #ffffff;
    width: 100%;
    height: 100%;
    opacity: 0.8;
}

.loading-image {
    width: 150px;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}