Issues

• [css-animations-2] Implicit keyframes creation with complex offsets

  css-animations-2
  w3c/csswg-drafts#14566 · Filter by author ydaniv opened on Oct 7, 2026

• [css-animations-2] [scroll-animations-1] The choice of the multiple matched 0%/100% keyframes when using <timeline-range-offset> offsets

  css-animations-2scroll-animations-1
  w3c/csswg-drafts#14281 · Filter by author BorisChiou opened on Aug 5, 2026

• [css-animations-2] Should animation-delay-end be added to animation?

  css-animations-2
  w3c/csswg-drafts#14220 · Filter by author cdoublev opened on Jul 23, 2026
  2

• [css-animations-2] Behavior of grouping together <keyframe-block> declarations is underspecified

  css-animations-2Needs EditsNeeds Testcase (WPT)
  w3c/csswg-drafts#14098 · Filter by author weinig opened on Jun 29, 2026
  8

• [css-animations-2] §4.9. The animation-timeline property links to wrong scroll-animations-1 section

  css-animations-2
  w3c/csswg-drafts#13991 · Filter by author jwatt opened on May 31, 2026

• The implicit keyframes (0% and 100%) if specified keyframes use <timeline-range-name>

  css-animations-2scroll-animations-1
  w3c/csswg-drafts#13872 · Filter by author BorisChiou opened on Apr 30, 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

• [css-values][css-conditional][css-animations] Proposal for time-based CSS

  css-animations-2css-conditional-5css-values-5
  w3c/csswg-drafts#13655 · Filter by author johannesodland opened on Mar 14, 2026
  4

• [scroll-animations-1][css-animations-2] Move the definition of animation-range-start and animation-range-end (and their shorthand) into css-animations-2

  css-animations-2scroll-animations-1
  w3c/csswg-drafts#13569 · Filter by author BorisChiou opened on Feb 26, 2026

• [css-animations-2] calling cancel() on a CSS Animation should prevent further changes made from CSS to apply

  css-animations-2
  w3c/csswg-drafts#13503 · Filter by author graouts opened on Feb 16, 2026
  7

• [css-animations-2] Setting Animation.timeline should override further changes to animation-timeline

  css-animations-2
  w3c/csswg-drafts#13472 · Filter by author Calme1709 opened on Feb 10, 2026

• [css-anchor-position-1][css-animations-2][scroll-animations-1] Fix name visibility for descendants

  animation-triggers-1Closed Accepted by CSSWG Resolutioncss-anchor-position-1css-animations-2Needs EditsNeeds Testcase (WPT)scroll-animations-1
  w3c/csswg-drafts#13364 · Filter by author flackr opened on Jan 16, 2026
  5

• [css-animations-2] Allow preserving animation state after regaining box

  css-animations-2
  w3c/csswg-drafts#13090 · Filter by author ydaniv opened on Nov 11, 2025
  7

• [css-animations-2] Allow expressing width/height animations as scale animations

  css-animations-2Needs Design / Proposal
  w3c/csswg-drafts#13064 · Filter by author noamr opened on Nov 5, 2025
  12

• Proposal: a way to _not_ reverse an animation's timing function when it plays in reverse or alternate direction

  css-animations-2Needs Thought
  w3c/csswg-drafts#12978 · Filter by author benface opened on Oct 19, 2025
  8

• [animations] Media playback and “GIF” synchronisation

  css-animations-2
  w3c/csswg-drafts#12389 · Filter by author Crissov opened on Jun 24, 2025
  3

• [css-animations-1][css-animations-2] Should any of the new animation-* longhands be forbidden in @keyframes ?

  css-animations-1css-animations-2Needs Edits
  w3c/csswg-drafts#12252 · Filter by author nt1m opened on May 29, 2025
  4

• [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

• [css-transforms] Feature request: Animate a part of an element

  css-animations-2
  w3c/csswg-drafts#11564 · Filter by author FirstByteFirst opened on Jan 24, 2025
  3

• [css-animations-2][css-style-attr] Anonymous inline keyframes (e.g. in a style attribute)

  css-animations-2css-style-attr-3
  w3c/csswg-drafts#10951 · Filter by author noamr opened on Sep 26, 2024
  14

• [css-animations] How should relative-length values be interpreted when used in the <keyframe-selector> production in the @keyframes prelude?

  css-animations-2css-values-4
  w3c/csswg-drafts#10880 · Filter by author weinig opened on Sep 12, 2024
  19

• [css-values-5] Should interpolate-size be a new value to animation/transition-behavior?

  css-animations-2css-transitions-2css-values-5
  w3c/csswg-drafts#10576 · Filter by author nt1m opened on Jul 15, 2024
  10

• [css-animations-2][web-animations-2] (proposal) Add pointer driven animations

  css-animations-2Needs Design / ProposalNeeds Editsweb-animations-2
  w3c/csswg-drafts#10574 · Filter by author ydaniv opened on Jul 14, 2024
  12

  

• [css-animations] Define animation-behavior (counterpart to transition-behavior)

  css-animations-2
  w3c/csswg-drafts#10469 · Filter by author LeaVerou opened on Jun 19, 2024
  6