Issues

• [web-animations-2] Incorporate implicit keyframe generation override from scroll animations

  web-animations-2
  w3c/csswg-drafts#14309 · Filter by author birtles opened on Aug 12, 2026

• [web-animations-2] rangeStart and rangeEnd invalidly returns dictionaries as attribute values

  Agenda+web-animations-2
  w3c/csswg-drafts#14205 · Filter by author saschanaz opened on Jul 20, 2026
  1

• [scroll-animations][css-viewport] How should the zoom property affect animation-range-start/animation-range-end

  Agenda+css-viewport-1scroll-animations-1web-animations-2
  w3c/csswg-drafts#14188 · Filter by author weinig opened on Jul 15, 2026
  6

• [web-animations-2] Auto-aligning the start time should apply a pending playback rate

  Closed Accepted as Obvious Bugfixweb-animations-2
  w3c/csswg-drafts#14173 · Filter by author graouts opened on Jul 13, 2026
  7

  

• [web-animations-2] How do relative units get evaluated when being processed as offsets in KeyframeEffect.setKeyframes

  web-animations-2
  w3c/csswg-drafts#14092 · Filter by author weinig opened on Jun 27, 2026

• [web-animations-2] partial dictionary OptionalEffectTiming should specify duration

  scroll-animations-1web-animations-2
  w3c/csswg-drafts#13990 · Filter by author jwatt opened on May 30, 2026
  1

• [web-animations-2] Throw at "If valid seek time is false, abort this procedure."?

  web-animations-2
  w3c/csswg-drafts#13985 · Filter by author jwatt opened on May 29, 2026

• [web-animations-2] How/when do the "rangeStart/rangeEnd" attributes the Animation interface get evaluated

  Needs Design / ProposalNeeds EditsNeeds Testcase (WPT)web-animations-2
  w3c/csswg-drafts#13853 · Filter by author weinig opened on Apr 28, 2026
  25

• [web-animations-2][scroll-animations-1] Playing an animation with an unresolved scroll-timeline

  Needs EditsNeeds Testcase (WPT)web-animations-2
  w3c/csswg-drafts#13817 · Filter by author kevers-google opened on Apr 16, 2026
  1

• [css-animations-2][web-animations-2][scroll-animations-1] Timeline returned for scope with no timeline providing that name.

  css-animations-2Needs EditsNeeds Testcase (WPT)scroll-animations-1web-animations-2
  w3c/csswg-drafts#13807 · Filter by author flackr opened on Apr 14, 2026
  7

• [css-animations][web-animations] Animations based on absolute/wall time

  css-animations-2web-animations-2
  w3c/csswg-drafts#13664 · Filter by author johannesodland opened on Mar 16, 2026

• [web-animations-2] [scroll-animations] "at progress timeline boundary" for view timelines

  scroll-animations-1web-animations-2
  w3c/csswg-drafts#13509 · Filter by author graouts opened on Feb 17, 2026
  2

• [meta] Change naming scheme of FXTF specs?

  compositing-1compositing-2css-filter-effects-1css-filter-effects-2css-masking-1css-masking-2fill-stroke-3metamotion-1web-animations-2
  w3c/csswg-drafts#13473 · Filter by author SebastianZ opened on Feb 10, 2026
  4

• [web-animations-2] Playing newly created animations with finite timelines doesn't schedule play task

  web-animations-2
  w3c/csswg-drafts#13236 · Filter by author Calme1709 opened on Dec 18, 2025

• [web-animations-2] Incorrect value for total time in "convert a time based animation to a proportional animation"

  web-animations-2
  w3c/csswg-drafts#13230 · Filter by author Calme1709 opened on Dec 17, 2025

• [web-animations-2] Iteration duration is never set if specified iteration duration is "auto" in "convert a time based animation to a proportional animation"

  web-animations-2
  w3c/csswg-drafts#13220 · Filter by author Calme1709 opened on Dec 15, 2025

• [web-animations-2] Should CSSNumericValue number values be allowed for setting start and current time?

  web-animations-2
  w3c/csswg-drafts#13196 · Filter by author Calme1709 opened on Dec 9, 2025

• [web-animations-2] Replace incorrect references to iteration duration with specified iteration duration

  web-animations-2
  Unread
  w3c/csswg-drafts#13170·Calme1709 opened Nov 28, 2025 · Updated Oct 21, 2026

• Clamping values and additive animation

  web-animations-1web-animations-2
  w3c/csswg-drafts#12648 · Filter by author KevinDoughty opened on Aug 24, 2025
  8

• Animation and clamping of width, height, and size

  web-animations-1web-animations-2
  w3c/csswg-drafts#12645 · Filter by author KevinDoughty opened on Aug 23, 2025

• [scroll-animations-1] [web-animations-2] at progress timeline boundary and animation ranges

  Closed Accepted by CSSWG ResolutionNeeds EditsNeeds Testcase (WPT)scroll-animations-1web-animations-2
  w3c/csswg-drafts#12134 · Filter by author graouts opened on Apr 29, 2025
  5

• [web-animations-2]Should animation triggers have equal control over their animations’ playback?

  animation-triggers-1web-animations-2
  w3c/csswg-drafts#11914 · Filter by author DavMila opened on Mar 11, 2025
  4

• [scroll-animations] should an infinite duration yield an exception for effects associated with a progress-based animation?

  scroll-animations-1web-animations-2
  w3c/csswg-drafts#11804 · Filter by author graouts opened on Feb 28, 2025
  3

• [web-animations-2] moving from a progress-based timeline to a monotonic timeline can yield incompatible timeline time and animation current time

  scroll-animations-1web-animations-2
  w3c/csswg-drafts#11761 · Filter by author graouts opened on Feb 21, 2025
  2

• [web-animations-2][css-animations-2] Allow controlling video playback via an animation timeline

  css-animations-2web-animations-2
  w3c/csswg-drafts#11611 · Filter by author flackr opened on Jan 30, 2025
  13