body {
    font-family: -apple-system, BlinkMacSystemFont, sans-serif;
}
#myVideo {
    position: fixed;
    right: 0;
    bottom: 0;
    min-width: 100%;
    min-height: 100%;
}
.content {
    position: fixed;
    top: 50%;
    left: 0;
    right: 0;
    -ms-transform: translateY(-50%);
    transform: translateY(-50%);
    background: rgba(0, 0, 0, 0.5);
    color: #f1f1f1;
    width: 100%;
    padding: 0 0 20px 0;
    text-align: center;
}