>No, HTML and CSS are document markup languages. They are actually quite bad at UIs. This was true 10 years ago. Now frameworks like React are at or beyond the

>No, HTML and CSS are document markup languages. They are actually quite bad at UIs. This was true 10 years ago. Now frameworks like React are at or beyond the sophistication of anything native. Practically every other UI technology implements their interfaces in an XML-esque syntax that is far less expressive and flexible than HTML, which end up locking you in to a small constrained ecosystem. CSS has evolved as well, and with GPU acceleration out of the box and things like grid and flexbox all of the older issues are gone.