Running http://jigsaw.w3.org/css-validator/ on http://www.freebsd.org/doc/en_US.ISO8859-1/books/fdp-primer/docbook.css gives: Sorry! We found the following errors (1) URI : http://www.freebsd.org/doc/en_US.ISO8859-1/books/fdp-primer/docbook.css 373 .note p, .tip p, .important p, .warning p, .caution p Parse Error [,] It seems the main page, freebsd.org, does not use docbook.css anymore?
Only the documents generated from DocBook source use docbook.css. The main web page has its own CSS files in the htdocs/layout subdirectory.
A commit references this bug: Author: wblock Date: Tue Aug 11 20:28:51 UTC 2015 New revision: 47198 URL: https://svnweb.freebsd.org/changeset/doc/47198 Log: Remove extra comma located by the w3.org CSS validator. PR: 202242 Submitted by: mexas@bris.ac.uk Reviewed by: allanjude Differential Revision: https://reviews.freebsd.org/rD42009 Changes: head/share/misc/docbook.css
Fixed, thanks!