body.preload {
    overflow: hidden;
}

.preloader {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: #000000;
    z-index: 1000;
    opacity: 1;
    transition: .8s ease-out;
}

.preloader_hidden {
    opacity: 0;
    z-index: 0;
    pointer-events: none;
}

.preloader img {
    position: absolute;
    margin: auto;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
}