Board Thread:Support Requests - Getting Technical/@comment-6100779-20181102144641/@comment-168424-20181102180312

JustLeafy wrote:

MediaWiki:Common.css is currently the same as MediaWiki:Wikia.css. MediaWiki:Monobook.css has no purpose, however.

This is not quite right. All wikis should load MediaWiki:Wikia.css, but some wikis load don't load MediaWiki:Common.css automatically. Now that the Monobook skin has been removed, MediaWiki:Monobook.css has no purpose as JustLeafy said.

Information about specific page loading used to be in the Help pages, but FANDOM staff "helpfully" removed it. Here is the info from the page history:
 * On all wikis created after July 2014
 * MediaWiki:Common.css is loaded for the main FANDOM skin and MonoBook . The contents will be applied before MediaWiki:Wikia.css and MediaWiki:Monobook.css. For most communities this doesn't matter, but if you use  rules (like for importing custom fonts), it is best they are added to the top of MediaWiki:Common.css.


 * On most wikis created before July 2014
 * MediaWiki:Common.css is loaded for the MonoBook skin but not the main FANDOM skin. If you want to use MediaWiki:Common.css to create rules for both the FANDOM and MonoBook skin s, ask FANDOM Staff to enable this. If you do so, make sure to clean up any old CSS in MediaWiki:Common.css beforehand, otherwise it may cause unexpected effects.

I put strikethrough on the parts that are no longer accurate. I believe MediaWiki:Common.css is still not loaded automatically for older wikis unless they have requested it be loaded at some point, but there is no real way to tell.