Summary & Key Takeaways ​

• The sizes attribute for <img> has historically been complex and hard to sync with CSS.
• sizes="auto" support is nearing readiness for prime time.
• Jason Grigsby suggests going further by removing srcset entirely.
• This would significantly simplify responsive image implementation for developers.
• The goal is to reduce the cognitive load and error surface for responsive images.

Our Commentary ​

Responsive images have been a persistent headache for web developers for years. The sizes attribute, in particular, has always felt like a hack. The idea that sizes="auto" is almost here, and that we might even be able to ditch srcset entirely, is incredibly exciting. This would be a massive win for developer experience and a long-overdue simplification of a core web platform feature. We're ready for this complexity to end.