.embed-responsive-1by1{aspect-ratio:1/1}.embed-responsive-1by1::before{padding-top:100.00%}.embed-responsive-3by2{aspect-ratio:3/2}.embed-responsive-3by2::before{padding-top:66.67%}.embed-responsive-4by3{aspect-ratio:4/3}.embed-responsive-4by3::before{padding-top:75.00%}.embed-responsive-48by47{aspect-ratio:48/47}.embed-responsive-48by47::before{padding-top:97.92%}.embed-responsive-8by3{aspect-ratio:8/3}.embed-responsive-8by3::before{padding-top:37.50%}