Re: [csswg-drafts] [css-conditional] [css-contain] `srcset` and `sizes` interaction with container queries (#5889)

> @austinh I think at least the second one is kinda unsolvable? Or what am I missing? You do need to do layout to determine which image to load, so by definition you can't load the image eagerly, right? You could prefetch or something, I guess, but...

I guess Im asking if there is any suggested solution to "right size" images for hero or even just initial viewport images - but say you don't know the size upfront because it's expressed in container query. Sizes=auto always requires a lazy load.

Is lazy really the soonest the browser can load this information? I saw a proposal at some point for after-layout - something in between eager and lazy. This would allow for better quality images but also better performance (not over fetching for example). 

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Received on Wednesday, 18 February 2026 19:27:29 UTC