.preloader {
    background-color: #000;
    width: 100%;
    height: 100%;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 999999;
    -webkit-transition: .6s;
    -o-transition: .6s;
    transition: .6s;
    margin: 0 auto;
}

.preloader .preloader-img img {
    max-width: 550px;
}