SCSS
npm install -g sass
Spotless Salmon
npm install -g sass
npm uninstall node-sass
npm install node-sass@4.14.1
css, but with variables and simple functions
Sass is a CSS pre-processor with syntax advancements.
Style sheets in the advanced syntax are processed by the program,
and turned into regular CSS style sheets.
However, they do not extend the CSS standard itself.
CSS variables are supported and can be utilized but not as well as pre-processor variables.