body {
    margin: 0 !important;
    padding: 0 !important;
}
#video-container {
    position: fixed;
    right: 0;
    bottom: 0;
    background-color: black;
    min-width: 100%;
    min-height: 100%;
    text-align: center;
}
@media screen and (orientation: landscape) {
    #myVideo {
        height: 100vh !important;
        width: auto !important;
        margin: auto;
    }
}
@media screen and (orientation: portrait) {
    #myVideo {
        width: 100vw !important;
        height: auto !important;
        margin: auto;
    }
}