#site_loading {
    position: fixed;
    left: 0;
    top: 0;
    width: 100vw;
    height: 100vh;
    z-index: 9999;
    background: #FFFFFF;
    transition: all 1s;
}
#site_loading svg {
    width: 20vw;
    margin: 30vh 40vw;
}
@media (max-width: 768px) {
    #site_loading svg {
        width: 30vw;
        margin: 45vh 35vw;
    }
}