#b_header{position:fixed;top:0;background:#fff}#b_content{margin:0;padding:153px 0;--list-item-margin:0 0 20px;min-height:100vh}.maincontent{min-width:600px;width:100vw}.maincontent .mainline{margin:0 auto;width:min-content}@media(max-width:1160px){.videoTile,.videoTile .thumbnailCanvas{width:580px}}@media(min-width:1161px) and (max-width:1260px){.videoTile,.videoTile .thumbnailCanvas{width:680px}}@media(min-width:1261px) and (max-width:1440px){.videoTile,.videoTile .thumbnailCanvas{width:780px}}@media(min-width:1441px) and (max-width:1820px){.videoTile,.videoTile .thumbnailCanvas{width:880px}}@media(min-width:1821px){.videoTile,.videoTile .thumbnailCanvas{width:1280px}}