body #b_header{background:#fff;position:sticky;top:0}#b_content{--list-item-margin:0 0 20px;min-width:600px;max-width:100vw;min-height:100vh;margin:0;padding:32px 0 20px}#b_footer{max-width:100vw;padding-bottom:44px;position:relative;bottom:0}.maincontent .mainline{width:min-content;margin:0 auto}@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}}