🎨 Border Radius Generator

🎯 Border Radius Guidelines

• Subtle is Better: Start with small radius values (4-8px) for professional designs
• Consistency: Use consistent radius values throughout your design system
• Context Matters: Larger elements can handle larger radius values
• Mobile First: Consider touch targets when designing rounded buttons
• Accessibility: Ensure rounded elements maintain good contrast ratios

📱 Common Use Cases

• Buttons: 4-8px for subtle, 20-25px for pill buttons
• Cards: 8-16px for modern card layouts
• Input Fields: 4-6px for form elements
• Images: 50% for perfect circles, 8-12px for photos
• Modals: 12-20px for dialog boxes and overlays

⚡ Performance Tips

• Use Percentage: 50% creates perfect circles regardless of size
• Avoid Complex Shapes: Simple radius values perform better
• CSS Variables: Use custom properties for consistent theming
• Fallbacks: Provide fallbacks for older browsers
• Testing: Always test on different screen sizes

🎨 Design Trends

• Neumorphism: Subtle shadows with matching border radius
• Glassmorphism: Rounded corners with backdrop blur
• Minimal Design: Small, consistent radius values
• Bold Shapes: Large radius for statement elements
• Organic Forms: Asymmetric radius for natural feel

🔧 Technical Considerations

• Browser Support: Modern syntax is widely supported
• Shorthand: Use shorthand for uniform radius values
• Individual Values: Specify each corner for complex shapes
• Elliptical Radius: Use two values for oval corners
• Percentage vs Pixels: Choose based on responsive needs

🚫 Common Mistakes

• Over-rounding: Too much radius can look unprofessional
• Inconsistency: Using random radius values across the site
• Ignoring Content: Radius should complement the content inside
• Poor Contrast: Rounded elements still need good accessibility
• No Fallbacks: Always consider older browser support

What is Border Radius?

Border radius is a CSS property that allows you to create rounded corners on elements. It's one of the most commonly used properties in modern web design for creating visually appealing interfaces.

Basic Syntax

/* Single value - all corners */
border-radius: 10px;

/* Two values - horizontal/vertical */
border-radius: 10px 20px;

/* Four values - top-left, top-right, bottom-right, bottom-left */
border-radius: 10px 15px 20px 5px;

/* Percentage for responsive design */
border-radius: 50%; /* Perfect circle */
          

Individual Corner Control

/* Individual corner properties */
border-top-left-radius: 10px;
border-top-right-radius: 15px;
border-bottom-right-radius: 20px;
border-bottom-left-radius: 5px;
          

Elliptical Borders

You can create elliptical corners by specifying both horizontal and vertical radius values:

/* Elliptical corners */
border-radius: 20px / 10px; /* 20px horizontal, 10px vertical */

/* Mixed elliptical corners */
border-radius: 10px 20px 30px 40px / 5px 10px 15px 20px;
          

Responsive Design

Use percentage values for responsive rounded corners:

/* Responsive circle */
.circle {
  border-radius: 50%;
  width: 100px;
  height: 100px;
}

/* Responsive pill button */
.pill-button {
  border-radius: 25px;
  padding: 10px 20px;
}
          

Browser Compatibility

Border radius has excellent browser support. For older browsers, you might need vendor prefixes:

/* Legacy support */
-webkit-border-radius: 10px;
-moz-border-radius: 10px;
border-radius: 10px;
          

Advanced Techniques

Combine border radius with other CSS properties for stunning effects:

/* Neumorphism effect */
.neumorphic {
  border-radius: 20px;
  background: #e0e5ec;
  box-shadow: 
    8px 8px 16px #a3b1c6,
    -8px -8px 16px #ffffff;
}

/* Glassmorphism effect */
.glass {
  border-radius: 15px;
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.3);
}
          

Animation and Transitions

Animate border radius for interactive effects:

/* Smooth radius transition */
.button {
  border-radius: 5px;
  transition: border-radius 0.3s ease;
}

.button:hover {
  border-radius: 25px;
}
          

Best Practices Summary

• Use consistent radius values across your design system
• Consider the element's size when choosing radius values
• Test on different devices and screen sizes
• Use percentage for responsive circular elements
• Combine with box-shadow and gradients for modern effects
• Always consider accessibility and contrast