ericam/susy — pull request #133 by u982744 (2012-11-08 04:48:49+00:00)
Title: span-columns-fixed

Added span-columns-fixed mixin to allow use of px instead of %
- We found issues with sub-pixel rendering using percentages so decided to use px instead.
- Adds new mixin for span-columns-fixed which is just a wrapper to span-columns with the $fixed flag set to true