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Description
This issue is to collect use cases and references from PRs and other issues.
The origin of this is #675, but also the need to re-build our proposal as a suite of custom elements. In doing so, we should determine what attributes are useful / required for HTML authors, and which of those attributes should be programmable as API properties and methods for script developers.
- Implement our requirements.
- Take into account the Web Platform Design Principles.