On commons many templates used on file pages are using css styles defined on commons:Mediawiki:Common.css The problem is, that these classes are not available if you view the file page on another project, because these classes aren't defined at e.g. de:Mediawiki:Common.css

So it would be nice to have a new css message on commons which is embedded on every page on commons like common.css (because there you can also visit the template page) but that is also included on every local file page containing description from commons because there is no local file.

Example: class messagebox on this new style page would make the following change unnecessary http://commons.wikimedia.org/w/index.php?title=Template%3AInaccurate-map-disputed&diff=40991345&oldid=34221597

Version: unspecified
Severity: enhancement