.preloader {
    position: fixed;
    left: 0px;
    top: 0px;
    width: 100%;
    height: 100%;
    z-index: 999999;
    background-color: rgba(255, 255, 255, 0.7);
    background-position: center center;
    background-repeat: no-repeat;
    background-image: url(../images/preloader.svg);
}