.teaching-video-frame-wrap{background:#000;width:100%;padding-top:56.25%;position:relative;overflow:hidden}.teaching-video-frame{border:0;width:100%;height:100%;position:absolute;inset:0}.teaching-video-empty{color:#666;text-align:center;padding:40px 0}.videos-empty{text-align:center;color:#666;padding:60px 0}.sp2cx form{width:100%;height:40px;display:block;overflow:hidden}