Drop into the docroot of your CSS, run with node.js and browse your CSS stylesheets as an HTML styleguide.
Install with Node Package Manager (npm):
$ npm install instant-styleguide
var instaguide = require('instant-styleguide'); instaguide();
Run with node.js:
$ node name_of_above_file.js
A message should appear:
Server listening on http://localhost:8124
If you open that URL in your browser you should now be able to browse your CSS.