#spt-loader {
    background-attachment: fixed;
    background-repeat: no-repeat;
    display: block;
    height: 100vh;
    left: -999em;
    opacity: 0;
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 99999;
    
}

#spt-loader.active {
    left: 0;
    opacity: 1;
}