twitter/bootstrap — pull request #4717 by brianfeister (2012-08-26 11:12:12+00:00)
Title: Dynamic popovers with parametric mixins for inner / outer width and color

A followup from this pull request:

https://github.com/twitter/bootstrap/pull/4386#issuecomment-7849402

Looks like I missed the boat on 2.1.0-wip, and there were some changes to popovers in 2.1.0 release, this fixes the compatibility issues and handles it without the confusing math. Also added a few examples of custom styling to javascript.html docs.