#yt{position:relative;padding-top:56.25%}#yt #yt-video,#yt .btn-play{position:absolute;left:0;top:0;width:100%;height:100%}#yt .btn-play .s1{fill:#FF0211}#yt-playlist a{display:block;border-bottom:rgba(0,0,0,0) 5px solid}#yt-playlist a.on{border-color:#FF0211}