.embed-responsive-24by11{aspect-ratio:24/11}.embed-responsive-24by11::before{padding-top:45.83%}.embed-responsive-31by48{aspect-ratio:31/48}.embed-responsive-31by48::before{padding-top:154.84%}.embed-responsive-4by1{aspect-ratio:4/1}.embed-responsive-4by1::before{padding-top:25.00%}