For those not in the know, SASS is a parallel to CSS. It’s actually a language that allows you to use variables, nesting and function like elements called mixins. Typically the SASS will need to be run through a pre-processor to compile it into plain old CSS. If that doesn’t put a twinkle in your eye, then you need to be shown what happens when the SASS is processed to get it, just like I did.
I wrote in SASS, with a hint of Burbon:
@include font-face(libelsuit, '../fonts/libelsuit');
SASS was then translated to CSS:
src: url("../fonts/libelsuit.eot?#iefix") format("embedded-opentype"), url("../fonts/libelsuit.woff") format("woff"), url("../fonts/libelsuit.ttf") format("truetype"), url("../fonts/libelsuit.svg#libelsuit") format("svg");
Get it now? That’s just the tip of the iceberg. If you code CSS by hand, I strongly suggest checking out SASS, as it can not only speed up development, but can also make it much easier to use reusable code.