SASS is a tool built with Ruby that allows you to write CSS more simply with variable support and with an arguably nicer syntax. SASS stands for ‘Syntactically Awesome cSS’. The bare minimum SASS setup is actually to run it on Ruby and you can find out how on their website. Requirements Node and NPM. I'm using NPM(3.10.3) and Node(6.4.0) Setup Install node-sass npm install -g node-sass Create a SASS file to compile to CSS $width: 460 $height: 250 body background-color: #37474F .