As of right now, the sidebar is appearing below the content, with vertical and horizontal scrollbars around the #content div. 

Imagine there is a red freehand circle around the misplaced sidebar...

This appears on Physics and Physics Meta, but I haven't seen it on any other sites.

I'm using Google Chrome 45.0.2454.101 provided by Google's Yum repository, on Fedora 22 with KDE. I don't see it in other browsers, so I think it may be something specific to Chrome.

Interestingly, when I reduce zoom from 100% to 90%, then the scrollbars disappear and the sidebar returns to its proper place, but then everything's too small...

[![screenshot-physics.stackexchange.com 2015-10-14 11-45-59.png][1]][1]


  [1]: https://i.sstatic.net/ePVG7.jpg