.embed-responsive-1by1{aspect-ratio:1/1}.embed-responsive-1by1::before{padding-top:100.00%}.embed-responsive-24by5{aspect-ratio:24/5}.embed-responsive-24by5::before{padding-top:20.83%}.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%}