.media-youtube-preview-wrapper{max-width:100%;min-height:50px;position:relative;}.media-youtube-preview-wrapper object,.media-youtube-preview-wrapper iframe{max-width:100%;position:relative;}.media-youtube-preview-wrapper .js-fallback{left:0;margin-top:-0.5em;position:absolute;right:0;text-align:center;top:50%;}