visionmedia/nib — pull request #85 by kizu (2012-04-16 13:32:46+00:00)
Title: Refactored background-clip, added background-origin.

Added `background-origin` and refactored the `background-clip`. Both of those properties have legacy syntax, you can read about it [there](https://developer.mozilla.org/En/CSS/background-clip#Browser_compatibility).

So, now those mixins support simple rules like

background-clip: content-box;

And even values for multiple backgrounds with importance like

background-origin: content-box, border-box, padding-box !important;