:root{--video-ratio:1.77778;--video-container-max-width:640px;--video-container-x-padding-sum:2rem}.youtube-embed{--video-container-width:calc(80vw - var(--video-container-x-padding-sum));width:80%;height:calc(var(--video-container-width)/var(--video-ratio))}@media only screen and (min-width:672px){.youtube-embed{--video-container-width:var(--video-container-max-width)}}