With this example, you can add a class (appropriately) called
.fancy to a Symbolset element to create a nice circular background.
If you are new to Sass, here is a good place to get started.
Ready to jump in?
Here is the source code for the mixin (which gives us a sneak peek into Zaarly’s self-proclaimed “epic-fantasy-heavy-metal-themed” internal styleguide, better known as Hammer):