README
broccoli-cssnano 
Minify CSS using
cssnano
Issues with the output should be reported on the cssnano
issue tracker.
Install
$ npm install --save-dev broccoli-cssnano
Usage
var cssnano = require('broccoli-cssnano');
tree = cssnano(tree, options);
API
cssnano(tree, [options])
options
See the cssnano
options.
License
MIT © Sindre Sorhus