Log Message:
-----------
Update the documentation CSS stylesheet to current web site style
Modified Files:
--------------
pgsql/doc/src/sgml:
stylesheet.css (r1.7 -> r1.8)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/stylesheet.css?r1=1.7&r2=1.8)