.embed-responsive-1by1{aspect-ratio:1/1}.embed-responsive-1by1::before{padding-top:100.00%}.embed-responsive-16by9{aspect-ratio:16/9}.embed-responsive-16by9::before{padding-top:56.25%}.embed-responsive-3by4{aspect-ratio:3/4}.embed-responsive-3by4::before{padding-top:133.33%}.embed-responsive-4by3{aspect-ratio:4/3}.embed-responsive-4by3::before{padding-top:75.00%}.embed-responsive-48by23{aspect-ratio:48/23}.embed-responsive-48by23::before{padding-top:47.92%}