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responsive-images

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Use when reviewing article images, cards, galleries, or any component rendered at multiple sizes across breakpoints. Check both the markup and the CSS layout because an incorrect `sizes` attribute can negate a perfectly good `srcset`.

skills/responsive-images/SKILL.md

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# Implement responsive images with srcset

Serving a 2000px image to a 400px phone screen wastes bandwidth and slows loading—srcset lets the browser download only the size it needs.

## Quick Reference

- Use srcset to provide multiple image sizes
- Use sizes attribute to tell browser which size to download
- Browser selects optimal size based on viewport and DPR
- Can save 50-70% bandwidth on mobile devices

## Check

Verify that images use srcset and sizes attributes for responsive delivery.
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