.video-responsive{overflow:hidden;position:relative;height:0}.video-responsive.ratio-16-9{padding-bottom:56.25%}.video-responsive.ratio-4-3{padding-bottom:75%}.video-responsive.ratio-21-3{padding-bottom:42.85714%}.video-responsive iframe{left:0;top:0;height:100% !important;width:100% !important;position:absolute}