User blog comment:Kirkburn/Technical Update: July 1, 2015/@comment-4189499-20150703141222/@comment-4189499-20150704124002

I think I'll wait to see if Wikia implements a solution before editing my personal CSS (there are advantages to being able to see what everyone else sees as default), but I don't only thing the current set-up looks weird, but can also lead to problems when previewing heavily formatted pages. There aren't many of these, but for things such as the homepage and templates, you need to know if they're stretching the full width of a page, or make sure elements look right in relation to page width at certain widths, and you need to know where the margins are in relation to the page edge. I would prefer the preview looked off than have it missing this key information.