Sass Fundamentals - Sass Hearts Variables

This topic is for the [Sass Hearts Variables][] exercise in the [Sass Fundamentals][] trail. Post any questions, corrections, or pointers you have to share with other Upcase subscribers.
[Sass Hearts Variables]: https://exercises.upcase.com/exercises/create-and-use-a-sass-variable
[Sass Fundamentals]: https://thoughtbot.com/upcase/sass-fundamentals