.responsive-embed{position:relative;height:0;margin-bottom:1rem;padding-bottom:75%;overflow:hidden}.responsive-embed.widescreen{padding-bottom:56.25%}.responsive-embed.square{padding-bottom:100%}.responsive-embed embed,.responsive-embed iframe,.responsive-embed object,.responsive-embed video{position:absolute;top:0;left:0;width:100%;height:100%}