StyleX
StyleX: A Scalable CSS Styling Solution
Introduction to StyleX StyleX is Meta’s styling system built for large-scale applications. It merges the ergonomics of CSS-in-JS with the high performance of static CSS, producing collision-free atomic CSS while supporting expressive, type-safe style authoring. Originally open-sourced in late 2023, StyleX is now used across: * Facebook * Instagram * WhatsApp * Messenger