Responsive images are essential for modern web development. Here's how to implement them effectively:

1. Use the srcset attribute:
- Provide multiple image sizes
- Let the browser choose the best one
- Syntax: srcset='image-300w.jpg 300w, image-600w.jpg 600w'

Responsive images adapt to different screen sizes

2. Implement the sizes attribute:
- Tell the browser how much space the image will occupy
- Helps browser choose appropriate size
- Syntax: sizes='(max-width: 600px) 100vw, 50vw'

3. Use the picture element:
- Provides art direction capabilities
- Different images for different screen sizes
- Fallback support with img tag

Picture element provides art direction control

4. Consider device pixel ratio:
- High-DPI displays need larger images
- Use 2x, 3x variants for retina displays
- Balance quality with file size

5. Implement lazy loading:
- Load images only when they enter viewport
- Use loading='lazy' attribute
- Improves initial page load performance

6. Use modern formats with fallbacks:
- Provide WebP with JPEG fallback
- Progressive enhancement approach
- Better compression for supported browsers

7. Optimize for Core Web Vitals:
- Minimize Largest Contentful Paint (LCP)
- Reduce Cumulative Layout Shift (CLS)
- Improve user experience metrics

Proper responsive image implementation ensures fast loading and optimal display across all devices.