.wl-preloader {
    position: fixed;
    left: 0;
    top: 0;
    right: 0;
    bottom: 0;
    display: block;
    background-color: rgba(0, 0, 0, 0.3);
    z-index: 1050
}

.wl-preloader:after {
    content: "";
    display: block;
    position: absolute;
    left: 50%;
    top: 50%;
    width: 64px;
    height: 64px;
    background: url("preloader.svg") no-repeat center;
    background-size: contain;
    transform: translateX(-50%) translateY(-50%)
}