heading style improvement
content headings (h1, h2, h3, ...) of moin wiki pages (and likely also headings generated from other markups) look a bit too plain currently, they are just text in a bit bigger font.
esp. for smaller headings, this gets too similar to standard text, but even for bigger headings, this could look more pretty and could be more clearly identified as being a heading.
http://wiki.python.de/ <- maybe underlined like there (full width)?
The ¶ displayed on mouseover seems to have a different baseline as the heading, should be fixed also.