Sass is the most mature, stable, and powerful professional grade CSS extension language,
Sass is completely compatible with all versions of CSS. Sass is a CSS pre-processor.
Instructions on how to integrate Sass with React app.
1. Create a React app
npx create-react-app <app_name>
2. Install Sass
npm i sass
3. Rename all *.css files to *.scss
(e.g. index.css, App.css)
4. Rename all *.css imports to *.scss
(e.g. index.js, App.js)
5. Run React app