Hi,
I'm testing with the Purity-III template. I added a custom.css file (/templates/purity_iii/css/custom.css), but it is overridden by the corperate.css in the folder /templates/purity_iii/css/layouts/corporate.css.
I read several forum posts and placed the custom.css in different folders but could not find the solution to solve this problem. I hope someone knows the answer. Thanks!