SCSS Primer SCSS is a subset of the Syntactically Awesome StyleSheets (Sass) specification and is an extension of CSS. Every valid CSS stylesheet is valid SCSS. SCSS supports the following: Variables Nesting Operators Mixins SCSS variablesSCSS variables are a way to store information that you want to reuse throughout your style sheet. You can store things like colors, font stacks, or any CSS value you think you want to reuse. SCSS uses the $ symbol to make something a variable.SCSS functionsList of functions for Service Portal SCSS compiler.SCSS nestingSCSS lets you nest your CSS selectors in a way that follows the same visual hierarchy of your HTML.SCSS operatorsSCSS has a handful of standard math operators like +, -, *, /, and %. SCSS mixinsA mixin lets you make groups of CSS declarations that you want to reuse throughout your site. You can pass in values to make your mixin more flexible.