CSS Validator
Validate CSS code for syntax errors, browser compatibility issues, and best practices. Ensure your CSS is standards-compliant.
CSS Input
Validation Results
Validation results will appear here...
🎨 CSS Best Practices
Syntax & Structure
- Use proper CSS syntax
- Close all brackets properly
- Use consistent indentation
- Validate property names
- Check property values
Performance
- Avoid !important declarations
- Use efficient selectors
- Minimize CSS file size
- Optimize for rendering
- Use CSS transforms wisely
Compatibility
- Check browser support
- Use vendor prefixes
- Provide fallbacks
- Test on multiple browsers
- Consider progressive enhancement