.ratio{position:relative;width:100%}.ratio:before{display:block;padding-top:var(--nm-aspect-ratio);content:""}.ratio>*{position:absolute;top:0;left:0;width:100%;height:100%}.ratio-1x1{--nm-aspect-ratio:100%}.ratio-4x3{--nm-aspect-ratio:75%}.ratio-16x9{--nm-aspect-ratio:56.25%}.ratio-21x9{--nm-aspect-ratio:42.8571428571%}