@novicell/css-utils/dist/embed.css

A CSS utility class package inspired by Bootstrap 4 CSS utilities and configurable via CSS Custom Properties and PostCSS.

.embed-responsive{position:relative;display:block;width:100%;padding:0;overflow:hidden}.embed-responsive:before{display:block;content:""}.embed-responsive>.embed-responsive-item,.embed-responsive>embed,.embed-responsive>iframe,.embed-responsive>object,.embed-responsive>video{position:absolute;top:0;bottom:0;left:0;width:100%;height:100%;border:0}.embed-responsive-21by9:before{padding-top:233.333333%}.embed-responsive-16by9:before{padding-top:177.777778%}.embed-responsive-4by3:before{padding-top:133.333333%}.embed-responsive-1by1:before{padding-top:100%}