.embed-responsive-1by1::before{aspect-ratio:1/1}.embed-responsive-16by13::before{aspect-ratio:16/13}.embed-responsive-16by3::before{aspect-ratio:16/3}.embed-responsive-16by7::before{aspect-ratio:16/7}.embed-responsive-2by1::before{aspect-ratio:2/1}.embed-responsive-24by11::before{aspect-ratio:24/11}.embed-responsive-24by7::before{aspect-ratio:24/7}.embed-responsive-47by48::before{aspect-ratio:47/48}.embed-responsive-48by13::before{aspect-ratio:48/13}.embed-responsive-8by7::before{aspect-ratio:8/7}