If you are looking to speed up your code and extend your CSS, you can use Sass, and since Foundation uses Sass, we will be covering how to use Foundation and Sass in this chapter.
If you want to read more about the Sass project, you can visit the project's website at http://sass-lang.com. This site will keep you up to date on new features of Sass and has documented how to use every possible feature. As this is not a book about Sass, we will learn how to install Sass with Foundation and get it up and running in a free online code editor so that setting it up will be a lot easier if you are new to Sass.
We will also cover the very basics of Sass, but if you want to get more familiar with Sass outside of this book, there are some really good tools and ways to install Sass on your machine at http://sass-lang.com/install. On the left-hand side of the page, there are free and paid cross-platform apps to get you compiling Sass quickly without knowing any command line...