This section provides an overview of what sass is, and why a developer might want to use it.
It should also mention any large subjects within sass, and link out to the related topics. Since the Documentation for sass is new, you may need to create initial versions of those related topics.
Why SASS?
CSS
CSS
This covers Ruby only, which is the main SASS compiler for many systems but other options exist. A very common one for any node developer would be node-sass which could be easier, and orders of magnitude faster, for many users.
Sass' @extend
rule allows you to share CSS properties across multiple classes, keeping code DRY and easier to read.