CSS Containment in 2026: contain: layout, paint, size, and strict Explained
Understand every value of the CSS contain property (layout, paint, size, strict, content) with 2026 browser support notes, DevTools workflow, and real-world INP wins.
CSS Containment Articles
The Long Animation Frames (LoAF) API: How to Debug and Fix Slow Interactions
Learn how to use the Long Animation Frames (LoAF) API to diagnose and fix slow INP interactions. Covers script attribution, rendering phase breakdowns, third-party impact analysis, and production reporting.