History of CSS

1994: Håkon Wium Lie first proposed CSS as a way to separate content from presentation on the Web.
1996: CSS1 was published by the W3C, introducing selectors, fonts, colors, and the box model.
1998: CSS2 added positioning, media types, and advanced selectors to support richer page layouts.
1999–2000s: CSS split into modular specs (the start of “CSS3”), enabling faster evolution and new features like transitions and transforms.
2010s: Modern layout systems and responsive design features (Flexbox, Grid, media queries, and improved selectors) became widely supported, powering complex, adaptive interfaces.
Current use: CSS is essential for styling the web — handling layout, typography, colors, responsive design, animations, and themeability across devices, usually alongside HTML and JavaScript.