body {
    margin: 0;
    padding: 0;
    background-color: black;
}

.bg-video-wrap {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
    overflow: hidden;
    background: url(background.jpg) no-repeat center center/cover;
}

video {
    width: 100vw;
    height: 56.25vw;
    /* Given a 16:9 aspect ratio, 9/16*100 = 56.25 */
    min-height: 100vh;
    min-width: 177.77vh;
    /* Given a 16:9 aspect ratio, 16/9*100 = 177.77 */
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.only-mobile {
    position: fixed;
    overflow: hidden;
    min-width: 100%;
    height: 100vh;
    display: block;
    background: url(bg-mobile-min.jpg);
    background-size: cover;
    background-position: center center;
    background-repeat: no-repeat;
    position: relative;
    
}



.only-mobile img {
    position: absolute;
    margin: 0;
    top: 80%;
    left: 50%;
    transform: translate(-50%, -50%);
}

@media only screen and (max-width: 600px) {
    .bg-video-wrap {
        display: none;
        visibility: hidden;
    }
}

@media only screen and (min-width: 600px) {
    .only-mobile {
        display: none;
        visibility: hidden;
    }
}