#container{max-width:1920px;container-type:inline-size}#container,#inner{width:100%;box-sizing:border-box}#inner{padding-bottom:56.25%}.responsive-iframe{box-sizing:border-box;position:absolute;top:0;left:0;bottom:0;right:0;width:100%;height:100%;border:none}@container (inline-size < 768px){#inner{padding-bottom:160%}}