r49159 moved the successbox definition to shared.css.

It uses "float:left" for this div. The idea here is to have the div left aligned, and not full width. Because of this, a clear is needed at a later time. In monobook and vector this clear is present (div with id=preferences), but in a skin like classic for instance, it is not and you get the visual style as visible in the URL.

http://svn.wikimedia.org/viewvc/mediawiki?view=rev&revision=49159

Version: unspecified
Severity: trivial
URL: http://commons.wikimedia.org/wiki/File:Classic_view_preferences_error.png