.video-container{position:relative;padding-bottom:56.25%;padding-top:35px;height:0;overflow:hidden}.video-container iframe{position:absolute;top:0;left:0;width:100%;height:100%}iframe{border-radius:20px;overflow:hidden}.responsive-video{position:relative;padding-bottom:56.25%;height:0;overflow:hidden}.responsive-video iframe{position:absolute;top:0;left:0;width:100%;height:100%;border-radius:20px}.highlight{background-color:yellow;padding:0;border-radius:3px}