CSS

Service Workers Serving Stale Cache After a Production Deploy: How to Fix It

You just pushed a critical fix to production, but users are still seeing the old version. Your service worker is serving stale cache. Here's exactly why it happens and how to fix it permanently.

Jul 06, 2026 8m read 👁 18

Fixing Layout Shifts Caused by Dynamically Injected Web Fonts

Dynamically injected web fonts are one of the sneakiest sources of Cumulative Layout Shift. Learn how to diagnose the root cause and apply targeted fixes that keep your CLS score low without sacrificing typography.

Jun 23, 2026 10m read 👁 15

CSS Specificity Conflicts Breaking Your Utility Classes in Production

You add a Tailwind class, nothing changes. You add !important everywhere, things break worse. CSS specificity conflicts are the silent killer of utility-first styles in production — here's how to diagnose and fix them for good.

Jun 18, 2026 7m read 👁 17