.roc-embed-responsive{width:100%;padding:0;display:block;position:relative;overflow:hidden}.roc-embed-responsive:before{content:"";display:block}.roc-embed-responsive--16by9:before{padding-top:56.25%}.roc-embed-responsive--21by9:before{padding-top:42.8571%}.roc-embed-responsive--4by3:before{padding-top:75%}.roc-embed-responsive--1by1:before{padding-top:100%}.roc-embed-responsive__item{border:0;width:100%;height:100%;position:absolute;top:0;bottom:0;left:0}