Casper styles are compiled using Gulp/PostCSS to polyfill future CSS spec. You'll need Node and Gulp installed globally. After that, from the root directory:
`$ npm install`
`$ gulp`
Now you can edit `/assets/css/` files, which will be compiled to `/assets/public/` automatically.
## PostCSS Features Used
- Autoprefixer - Don't worry about writing browser prefixes of any kind, it's all done automatically with support for the latest 2 major versions of every browser.