.embed-responsive-1by1{aspect-ratio:1/1}.embed-responsive-1by1::before{padding-top:100.00%}.embed-responsive-16by15{aspect-ratio:16/15}.embed-responsive-16by15::before{padding-top:93.75%}.embed-responsive-48by17{aspect-ratio:48/17}.embed-responsive-48by17::before{padding-top:35.42%}.embed-responsive-48by19{aspect-ratio:48/19}.embed-responsive-48by19::before{padding-top:39.58%}