https://medium.freecodecamp.org/the-complete-guide-to-scss-sass-30053c266b23

JavaScript TeacherBlockedUnblockFollowFollowingJan 21In this tutorial Sassy, Sass and SCSS will refer to roughly the same thing. Conceptually, there isn’t much difference. You will learn the difference as you learn more, but basically SCSS is the one most people use now. It’s just a more recent (and according to some, superior) version of the original Sass syntax.

To start taking advantage of Sass, all you need to know are the key concepts. I’ll try to cover these in this tutorial.