#app-loader {
    display: block;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: white;
    z-index: 99999;
    pointer-events: none;
}

#app-loader .center {
    display: block;
    width: 100%;
    position: absolute;
    text-align: center;
    margin: 0 auto;
    top: 50%;
    transform: translateY(-50%);
}