SCSS

SCSS is a preprocessor language that is interrupted or compiled into CSS. It is a special type of SASS(Syntactically Awesome Style Sheets). Scripting of SCSS is done in Saasscript. SCSS contains all the features of CSS with a few extra added on speciality features as well.

Using SCSS, we can add many additional functionalities to CSS such as variables, nesting and more. All these additional functionalities can make writing CSS much easier and faster as compared to writing the traditional CSS.

Resources

The best resource for learning or brushing up on SCSS would be sass-lang.com.