Oct 21, 2013 The Matrix in Sass Adam Stacoviak Get the latest news and podcasts for developers in your inbox, every week. We make it super easy to keep up with developer news that matters. firstname.lastname@example.org This is a true testament to the awesomeness of Sass, and of course John W. Long. In his own words, "You would never want to write this in CSS." Make sure you check out the code behind this pen too.