#726 Fix page zoom out render issue

Fixes #726 

__Requires__: a `./bin/less --production` after merge

__Note:__ This fix works up to 4 levels of zoom out. Once you get past `zoom: 0.6` this still happens. However in order to fix this in cases where the user zooms out < 0.6 it'd involve some very horrible JS [1] to detect a difference in zoom level and then adjust some item widths accordingly. I don't really want to add JS module for such a minor edge case.

[1] http://stackoverflow.com/questions/1713771/how-to-detect-page-zoom-level-in-all-modern-browsers/5078596#5078596