css-order
Installation
SKILL.md
Order CSS files correctly
Incorrect CSS/JS order causes render-blocking delays and FOUC—users see unstyled content while waiting for styles to load.
Quick Reference
- Load all CSS files before JavaScript in the document head
- Use async/defer for non-critical JavaScript
- Inline critical CSS for faster first paint
- Prevents FOUC (Flash of Unstyled Content)
Check
Verify that all CSS files are loaded before JavaScript files in the document head to prevent render-blocking and ensure proper styling precedence.
Fix
Reorganize head section to load all CSS files before JavaScript files, except for asynchronous scripts that don't block rendering.