The best thing about all the new features in this article is that they solve real-world problems, from the small but annoying repetition of selectors to the new and ongoing challenges of building high-performance responsive sites. In fact, I can imagine using every single one of these features on a regular basis.

All of the features mentioned in this post simplify the job of a designer. I look forward to a future when these selectors and elements are implemented sans browser specific prefixes.