natecavanaugh/liferay-portal — pull request #2834 by pat270 (2014-09-24 15:19:36+00:00)
Title: LPS-50302

https://issues.liferay.com/browse/LPS-50302
Hey Nate, I ended up modifying the respond-to mixin and using the naming convention from your gist. I thought this way was more flexible since you could mix min and max sizes to target specific screen widths if you wanted.