lucasmotta/stylus-csswizardry-grids — pull request #2 by Waxolunist (2013-06-18 11:52:23+00:00)
Title: Conditional assignments

When I import the file csswizardry-grids.styl into my stylus file, I don't want to change the grids.styl. Therefore I assign the variables conditional with `:=`, thus I can define the variables outside of the grids.styl before importing it.