What Is Unused CSS?
Unused CSS refers to styles that are loaded but not actually used on a webpage. These styles increase file size and can slow down rendering.
Identifying and removing unused CSS is essential for optimizing performance and improving page speed.
Why Remove Unused CSS?
- Reduce CSS file size
- Improve page load speed
- Eliminate render-blocking CSS
- Optimize Core Web Vitals
- Improve user experience
Common Use Cases
- Audit website performance
- Optimize CSS for production
- Clean up unused styles
- Reduce page weight
- Improve Core Web Vitals scores
Frequently Asked Questions
What is unused CSS?
CSS that is loaded but not used by any elements on the page.
Why remove unused CSS?
To reduce file size and improve performance.
Does unused CSS affect performance?
Yes. It increases page weight and slows rendering.