backdrop-filter applies effects to the area behind an element. Here's how to use it effectively.
Basic Usage
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Glassmorphism Effect
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Navigation Bar
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Modal and Overlay
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Cards and Panels
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Tooltips and Popovers
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Buttons
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Hero Sections
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Animated Effects
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Browser Support
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Performance Tips
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Best Practices
Design:
✓ Use subtle blur values (4-20px)
✓ Combine with semi-transparent background
✓ Add borders for definition
✓ Consider accessibility
Performance:
✓ Limit blur area size
✓ Use lower blur values
✓ Avoid animating blur
✓ Test on mobile devices
Fallbacks:
✓ Provide solid background fallback
✓ Use @supports for detection
✓ Include -webkit- prefix
✓ Test without backdrop-filter
Avoid:
✗ Large area blurs
✗ High blur values (>20px)
✗ Multiple overlapping blurs
✗ Blur on scrolling content
Conclusion
backdrop-filter creates beautiful glass effects and blurred backgrounds. Use it for navigation bars, modals, cards, and tooltips. Keep performance in mind by limiting blur areas and values, and always provide fallbacks for unsupported browsers.