Re: [csswg-drafts] Proposal: shared element transitions (#6464)

A new [explainer](https://github.com/WICG/shared-element-transitions/blob/main/explainer.md) has been published with an updated proposal for how this feature works, and in particular how it connects to existing CSS concepts. It proposes:

* re-using the top layer
* extensions to the `element()` function for live and cached element image references
* new pseudo-elements

We think that this approach layers well on top of existing CSS concepts with only small additions, particularly for caching the painted content generated using element() from the prior document. The feature has also been scoped to add new capabilities which incrementally build on these concepts.

We’d appreciate a CSSWG review of the CSS architecture of the proposal, to ensure that part is sound. With that in place, we can continue exploring the shape of the API that triggers these CSS behaviors, knowing we have a good basis.


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Received on Tuesday, 16 November 2021 21:53:24 UTC