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sperez927
sperez927

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Compressing Critical CSS Payloads Without Breaking Layout

Revisited global styles in a legacy React app.
🚫 Before:

  • Global CSS: 240KB uncompressed
  • No purging of unused styles ✅ Fix:
  • Switched to Tailwind w/@layer and @apply
  • Enabled PurgeCSS in production
  • Inlined above-the-fold critical styles 📉 Result: CSS payload dropped to 288KB âš¡ First Contentful Paint improved by ~400ms (Lighthouse) 💡 CSS doesn't need to be big to be powerful.

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