twitter/bootstrap — pull request #6810 by andrewgunn (2013-02-06 09:55:36+00:00)
Title: Fixed curved border in tables

Problem: https://github.com/twitter/bootstrap/issues/6348
Solution: http://jsfiddle.net/andrewgunn/gH65M/7/

Zoom into the top left border of a table (docs/base-css.html#tables) and notice the background colour doesn't bleed through.