Remove more unused wiki-screen.css rules
Implement font-size width rems
Merge pull request #2316 from openjck/more-unused-wiki-screen-rules

Remove more unused wiki-screen.css rules
Merge pull request #2304 from darkwing/set-font-size

Implement font-size width rems
Reset main content class within wiki
Merge pull request #2323 from darkwing/fix-background

Reset main content class within wiki
Migrate wiki-screen rules about notes and warnings