a2labs/barekit — pull request #21 by ianrose (2014-08-21 18:38:23+00:00)
Title: Border-box - Inheriting box-sizing styles

> "This will give you the same result, and make it easier to change the box-sizing in plugins or other components that leverage other behavior."
Explaining further, let's say you have a component that was just designed to work with the default content-box box-sizing. You just wanted to use it and not mess with it.

http://css-tricks.com/inheriting-box-sizing-probably-slightly-better-best-practice/