w3c / w3c/csswg-drafts

[css-animation-events] Initially paused animations emit `animationstart` events

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Description

The spec does not forbid animationstart event to fire on an element whose animation-play-state CSS-property is set to paused, which is counterintuitive:

Is this an omission or a deliberate decision?

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Read the linked CSS Animations sections 4.7, “The animation-play-state property,” and 5.2, “Types of AnimationEvent.” Compare their wording for initially paused animations and review the issue’s existing comment. Done means the omission-versus-intent question has a documented Working Group resolution and the relevant specification text is clarified if needed.

Written by the indexing model from the issue text.

Assessment

Tech stack
css
Domain
documentation
Issue type
Documentation
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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