Proposed Resolution: Change the TimelineTrigger interface to support multiple timelines in a top-level sequence

Hey all,

The proposed change sets the top-level interface to only include a sequence

interface TimelineTrigger {
  attribute sequence<TimelineTriggerRange> ranges;
}

With each TimelineTriggerRange including the current members of the TimelineTrigger interface

This is notice that we will be taking this resolution in one week’s time unless objections (or substantive concerns) are raised in this issue:

https://github.com/w3c/csswg-drafts/issues/13175#issuecomment-3657610382

Thanks,

Alan

Received on Monday, 15 December 2025 21:11:28 UTC