.embed-responsive-1by1{aspect-ratio:1/1}.embed-responsive-1by1::before{padding-top:100.00%}.embed-responsive-16by13{aspect-ratio:16/13}.embed-responsive-16by13::before{padding-top:81.25%}.embed-responsive-24by22{aspect-ratio:24/22}.embed-responsive-24by22::before{padding-top:91.67%}.embed-responsive-48by19{aspect-ratio:48/19}.embed-responsive-48by19::before{padding-top:39.58%}