#g-slideshow {
    height: 100vh;
    object-fit: cover;
}

#g-container-top {
    position: relative;
}

#g-container-top:before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center center;
}

@media (max-width: 768px) {
    #g-container-top:before {
        height: 100%;
    }
}