Board Thread:Support Requests - Designing Your Wiki/@comment-1004591-20171102030819

Whatever I’m trying (I don’t know very much about CSS), the picture refuse to move to the center :

http://median-xl.wikia.com/wiki/User:Mortenkein/Sandbox

So, what am I doing wrong ? You can check the code here:

http://median-xl.wikia.com/wiki/MediaWiki:Common.css 