The styling used to denote classes in CSS is not applied to classes followed immediately by a comma, see line 5 of https://en.wikipedia.org/w/index.php?title=User:Mdowdell/vector.css&oldid=600474823 for an example.
Version: unspecified
Severity: minor
(In reply to Sam Reed (reedy) from comment #1)
Might need/want upstreaming...
It exists in other places that use GeSHi, such as [http://pastebin.com/DZGq13Ax pastebin], so upstreaming would be good :)
This is fixed in Pygments, the new library used for syntax highlighting. See T85794: Convert SyntaxHighlight_Geshi from Geshi to Pygments (was: Don't register 250+ modules) for more details.