Thread:Hackey5/@comment-26519821-20150826205004/@comment-25407271-20150826223938

You can only have editing access to either if you are an administrator. You can access the CSS by writing "/wiki/Special:CSS" after the URL of your wiki, from this you will be able to edit directly. For the Common.js, write the "MediaWiki:Common.js" after "/wiki/". You can view both pages in every wiki you wish even if you are not an administrator, you only need to write either of the "routes" in the URL.