Basscss is built with Rework with these dependencies: Rework NPM, Rework Custom Media, Rework Vars, Rework Plugin Colors, and Rework Calc. The source also includes compiled CSS.
To learn more about Rework, see Using Rework.
Clone from Github:
git clone https://github.com/jxnblk/basscss.git
NPM:
npm install basscss
Bower:
bower install basscss
CDN:
<link href="http://d2v52k3cl9vedd.cloudfront.net/basscss/4.1.4/basscss.min.css" rel="stylesheet">