Board Thread:Support Requests - Getting Technical/@comment-17033657-20160620161524/@comment-25295528-20160620162750

Are these portable infoboxes? If so, you need to make sure the background itself has border-radius settings, not just the base-section: .portable-infobox { border-radius: 0 0 7px 7px; }

...in MediaWiki:Wikia.css

This will give the entire background of the infobox border-radii on the bottom two corners.