#background-video-container {
    position: fixed;
    left: 0;
    top: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
}

#background-video-player {
    width: 1920px; /* An attempt to trick it into downloading good quality before we know the right size. */
    height: 1080px; /* An attempt to trick it into downloading good quality before we know the right size. */
    visibility: hidden;
}

#background-video-player .vjs-tech {
    width: 100%;
    height: 100%;
}