locust:

While looking around last night, I found PerlMonks CSS Examples, which is a start. Other googling and super searching may provide more...

...roboticus

1. PerlMonks Discussion ("This section is only for discussing issues pertaining to the PerlMonks web site. You can ask about how things work, or offer ideas on how the site could be improved, for example.")
     ... or (probably less appropriately) to
   
2. Meditations ("Meditations is sometimes used as a sounding-board....")

My preference is based on the suspicion that your CSS relates to your prior post re adding some 21st century pizzazz (not that I agree there's any need to impose change or flashiness for its own sake). Posting to discussion will allow a widespread audience to vet and comment. That's something that's (IMO) essential, before adopting any of them as an option for individual Monks to use.

go to your homenode, look for edit/settings ... PerlMonks FAQ/?node_id=3989;a=SiteDocClan;nf=0;BIT=theme;submit=Search: Customizing PerlMonks CSS, Help for Display Settings