Why is sass awesome?
It makes css work way easier and faster. You have to have ruby on rails installed and the sass gem installed.
First install sass with this command (you only need to do it once)
gem install sass
Type in CLI first navigate to correct director with cd
sass --watch .
to compile .scss into .css
Below is to install the bourbon library for css
gem install bourbon
scss advanced code
It compiles into .css: