docs: Fix a duplicate id
authorMatthias Clasen <mclasen@redhat.com>
Fri, 29 Jan 2016 13:08:08 +0000 (08:08 -0500)
committerMatthias Clasen <mclasen@redhat.com>
Fri, 29 Jan 2016 13:08:08 +0000 (08:08 -0500)
commit69a38a9771350a6fc16d49704db681a317fca318
treefa5267777390ea005a389dcc9181fcac1d289c1b
parenteabf1101822b6db9e83572121b1f6ff3cd3bdf98
docs: Fix a duplicate id

This was causing the css properties chapter to appear twice
in the docs, and the overview not at all.
docs/reference/gtk/css-properties.xml