The Great CSS Expansion
a day ago
- #Web Performance
- #CSS
- #JavaScript
- Native CSS features like Anchor Positioning and Popover API can replace JavaScript libraries for UI patterns such as tooltips, modals, and scroll-driven animations.
- Common JavaScript libraries for UI tasks (e.g., Floating UI, GSAP, React Select) add significant bundle size and maintenance overhead, which native CSS can eliminate.
- New CSS features improve performance by reducing JavaScript parse/execution time, benefiting Core Web Vitals like INP, LCP, and CLS.
- Some interactions, such as drag-and-drop and overlay scrollbars, still require JavaScript, as CSS has not yet solved these complex patterns.
- The web platform evolves by gradually replacing JavaScript hacks with native CSS solutions, following a historical pattern seen with features like rounded corners and sticky positioning.