history W3C 20 Years of CSS Chris Coyier on Dec 17, 2016 UGURUS offers elite coaching and mentorship for agency owners looking to grow. Start with the free Agency Accelerator today. Bert Bos, noting today as quite a notable day: On December 17, 1996, W3C published the first standard for CSS. Very interesting to see what historic points made the cut for the timeline. The Zen Garden, acid tests, preprocessors… good times! Direct Link →