.embed-responsive-1by1{aspect-ratio:1/1}.embed-responsive-1by1::before{padding-top:100.00%}.embed-responsive-4by3{aspect-ratio:4/3}.embed-responsive-4by3::before{padding-top:75.00%}.embed-responsive-48by37{aspect-ratio:48/37}.embed-responsive-48by37::before{padding-top:77.08%}.embed-responsive-8by5{aspect-ratio:8/5}.embed-responsive-8by5::before{padding-top:62.50%}.embed-responsive-8by7{aspect-ratio:8/7}.embed-responsive-8by7::before{padding-top:87.50%}