Stack
CSS
4.5 / 5
The web's styling language. Modern CSS (grid, custom properties, container queries) solves out of the box what a few years ago required hacks or JavaScript.
CSS is where design meets code, and the reason a designer who masters it plays with an edge: you understand what's cheap, what's expensive and what's impossible before you draw it. This site's design tokens end up, in the end, being CSS variables.
The language has matured enormously: grid and flexbox for layout, custom properties for theming, and newcomers like container queries or :has() that take JavaScript out of the picture. The usual trade-off: a poorly managed cascade grows toward chaos, and that's why systems and conventions exist (and tools like Tailwind).