Wrong URL?

Ehm. indeed so.

On en.wp we are now gonna add the following to Mediawiki:Common.css. But this would likely be more suited to be implemented in the standard css styles. Basically, it makes sure that float'ing elements don't overlap or push around several UI elements that you want to make sure with a certain visual consistency.

#mw-subcategories, #wikiDiff,
#mw-category-media, #mw-pages,
#wikiPreview, #filehistory {

clear: both;

}

This is now cleared in shared.css