bradfrost/this-is-responsive — pull request #74 by Nevraeka (2013-11-23 18:50:45+00:00)
Title: [Resources] Added Conditional Media Query Mixin Article to Resource List

Chris Coyier at CSS-Tricks gives a nice simple technique for creating conditional Media Query Mixins with SCSS. This is for SASS version 3.2 or higher. The comments also list great resources but I love this article because it is so barebones SASS and does not rely on more robust frameworks which tend to have a larger overhead.