MediaWiki:Common.css

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/* CSS placed here will be applied to all skins */

.embedvideo iframe {
    width: 100% !important;
    height: auto !important;
    aspect-ratio: 16 / 9;
	}

table.responsive-three-cols td.col {
    width: 33% !important;
    }

@media screen and (max-width: 720px) {

.embedvideo iframe {
    width: 100% !important;
    height: auto !important;
    aspect-ratio: 16 / 9;
}

//.col2-responsive td {
//        display: block !important;
//        width: 100% !important;
//        padding-right: 0 !important;
//        box-sizing: border-box !important;
//    }
	
table.responsive-three-cols td.col {
        display: block;
        width: 100% !important;
    }

MediaWiki:Common.css

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