In my previous article CSS custom properties (variables) In-Depth I described CSS custom properties (variables) and variations of their usages. If you started thinking to move from CSS preprocessors to plain CSS after that- next your question might be: “what about mixins”? And voilà- there is not only an editor’s draft- https://tabatkins.github.io/specs/css-apply-rule/ but even working implementat
![CSS @apply rule (native CSS mixins)](https://cdn-ak-scissors.b.st-hatena.com/image/square/f26870f907f4242126d0c9332e695e2ea87885a2/height=288;version=1;width=512/http%3A%2F%2Fi.imgur.com%2Fo7pDpdQ.png)