It’s Time To Talk About “CSS5”

We have been talking about CSS3 for a long time. Call me a fossil, but I still remember the new border-radius property feeling like the most incredible CSS3 feature. We have moved on since we got border-radius and a slew of new features dropped in a single CSS3 release back in 2009.
CSS, too, has moved on as a language, and yet “CSS3” is still in our lexicon as the last “official” semantically-versioned release of the CSS language.
It’s not as though we haven’