.embed-responsive-31by48{aspect-ratio:31/48}.embed-responsive-31by48::before{padding-top:154.84%}.embed-responsive-4by3{aspect-ratio:4/3}.embed-responsive-4by3::before{padding-top:75.00%}.embed-responsive-48by35{aspect-ratio:48/35}.embed-responsive-48by35::before{padding-top:72.92%}.embed-responsive-48by41{aspect-ratio:48/41}.embed-responsive-48by41::before{padding-top:85.42%}.embed-responsive-8by5{aspect-ratio:8/5}.embed-responsive-8by5::before{padding-top:62.50%}