We added the Timeless skin to QualityBox, and Minerva plus the Mobile Frontend extension to improve the mobile formatting and compatibility. We also added some overrides in MediaWiki:Common.css.
At the bottom of every page is a link between the 'mobile' view and 'desktop' view of the site. Or, you can try different skin choices in your Special:Preferences. Or, just click here for a preview of minerva.