A large table might be wrapped with table-wrapper and table-scrollable depending on how wide the browser was when the page was rendered. Currently, Firefox is rendering the floated tables (http://legonxt.christian.wikia-dev.com/wiki/KyleTest) on top of the wide table when the table is wrapped but not scrolling (load the page with a narrow browser and widen). Maybe the table should be unwrapped if not wide during scan.