#pageLoader {
    background: rgba(0, 0, 0, 0.5);;
    display: none;
    height: 100%;
    width: 100%;
    overflow-y: hidden;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    position: absolute;
    z-index: 9999;
}

#pageLoader img {
    left: 50%;
    position: fixed;
    top: 50%;
}