this is a great CSS read. blog.gitbutler.com/the-great-css-expansion
not to mention syntax improvements; nested CSS, CSS vars and mixing colors, et al.
The Great CSS Expansion
CSS now does what Floating UI, GSAP ScrollTrigger, Framer Motion, and react-select used to require JavaScript for. Here is exactly how much that saves, why these libraries were painful beyond their size, and what the platform still hasn't figured out.
Jonathan Kemper