.video-container {position: relative;overflow: hidden;width: 100%;padding-top: 56.25%;}#youtubePlayer {position: absolute;top: 0;left: 0;bottom: 0;right: 0;width: 50%;height: 50%;transition: 0.2s ease;}#youtubePlayer.playing {width: 75%;height: 75%;}#player {position: absolute;top: 0;left: 0;bottom: 0;right: 0;width: 100%;height: 100%;}