Just want to give you a heads up that I pushed some design tweaks to our dev server. The changes will go live after our next production build. Visually it should "feel" the same as the old site with slight layout adjustments.
We are moving the site's CSS to a newly refactored LESS system, so that it's easier for us to fix SE network CSS bugs globally and launch new features in the future. This update should retro-actively fix most of the old design bugs. If you see any new ones, or old ones not yet fixed, please post an answer here to let me know!