.embed-responsive-1by1::before{aspect-ratio:1/1}.embed-responsive-16by15::before{aspect-ratio:16/15}.embed-responsive-16by5::before{aspect-ratio:16/5}.embed-responsive-24by22::before{aspect-ratio:24/22}.embed-responsive-24by23::before{aspect-ratio:24/23}.embed-responsive-24by5::before{aspect-ratio:24/5}.embed-responsive-3by1::before{aspect-ratio:3/1}.embed-responsive-3by2::before{aspect-ratio:3/2}.embed-responsive-8by3::before{aspect-ratio:8/3}.embed-responsive-8by5::before{aspect-ratio:8/5}.embed-responsive-8by7::before{aspect-ratio:8/7}