.player_container .video {
    width: 100%;
}

.cloudflare_container div:first-child,
.vimeo_container div:first-child {
    padding: 56.25% 0 0 0;
    position: relative;
}

.cloudflare_container div iframe:first-child,
.vimeo_container div iframe:first-child {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}