.embed-responsive{position:relative;display:block;width:100%;padding:0;overflow:hidden}.embed-responsive::before{display:block;content:"";padding-top:var(--custom-video-ratio,calc(100% * var(--y,1)/ var(--x,1)))}.embed-responsive .embed-responsive-item,.embed-responsive embed,.embed-responsive iframe,.embed-responsive object,.embed-responsive video{position:absolute;top:0;bottom:0;left:0;width:100%;height:100%;border:0}.embed-responsive .mejs-container{position:absolute;top:0;bottom:0;left:0;width:100%;height:100%;border:0}.embed-responsive.embed-responsive-auto:before{display:none}.embed-responsive.embed-responsive-auto .embed-responsive-item,.embed-responsive.embed-responsive-auto embed,.embed-responsive.embed-responsive-auto iframe,.embed-responsive.embed-responsive-auto object,.embed-responsive.embed-responsive-auto video{position:static;width:100%;height:auto}.embed-responsive-21by9{--x:21;--y:9}.embed-responsive-16by9{--x:16;--y:9}.embed-responsive-4by3{--x:4;--y:3}