So far, we've had a look at how to write our own mixins, as well as importing and using pre-written mixin libraries. We should not forget the most popular mixin library that is available for use with SASS though, which is Compass. We're going to turn our focus to installing support for it, as part of the next recipe.
For this recipe, all you will need is a command prompt.
gem install compass
You should see the following screenshot: