Sass variables and CSS Custom Properties (a.k.a. CSS variables) are pretty different from each other [1]. If you want to use CSS Nesting and be backwards compa

Sass variables and CSS Custom Properties (a.k.a. CSS variables) are pretty different from each other [1]. If you want to use CSS Nesting and be backwards compatible with older browsers, the PostCSS plugin postcss-preset-env handles that and lots of other new CSS features that older browsers don't support [2]. [1]: https://sass-lang.com/blog/sass-and-native-nesting/ https://sass-lang.com/blog/sass-and-native-nesting/ [2]: https://preset-env.cssdb.org https://preset-env.cssdb.org