Board Thread:Support Requests - Getting Technical/@comment-14779707-20131126142142

I wanted the Wikia Infobox headers to be italicised by default, and centred, so I added the following CSS to my wiki's MediaWiki:Special:CSS

.wikia-infobox-header { text-align: center; font-style: italic; }

But it doesn't work, as you can see over here. I'm pretty sure it isn't a caching issue, because I've purged it twice and have waited for 1 hour and 20 minutes.

How can I fix this?

Thanks. 