Issues

• [cssom-1][css-sizing-4] Exclude size from the preferred shorthand order

  css-sizing-4cssom-1
  w3c/csswg-drafts#14558 · Filter by author cdoublev opened on Oct 3, 2026
  1

• [cssom-1] Should CSSFunctionRule.insertRule() parse declarations?

  cssom-1
  w3c/csswg-drafts#14555 · Filter by author cdoublev opened on Oct 2, 2026

• [cssom-1] Expected error type when trying to insert an invalid rule in a grouping rule

  cssom-1
  w3c/csswg-drafts#14537 · Filter by author cdoublev opened on Sep 29, 2026

• [cssom] CSSOM serialization of declaration blocks is incompatible across browsers and a forward-compat landmine

  Agenda+cssom-1
  w3c/csswg-drafts#14422 · Filter by author tabatkins opened on Aug 31, 2026
  4

• [cssom] "Preferred shorthand order" seems weird?

  cssom-1
  w3c/csswg-drafts#14421 · Filter by author tabatkins opened on Aug 31, 2026

• [cssom] Make setProperty() strip leading/trailing whitespace

  Agenda+cssom-1
  w3c/csswg-drafts#14365 · Filter by author tabatkins opened on Aug 20, 2026

• unicode-range descriptor should serialize codepoint hex digits as ASCII case-insensitive?

  css-fonts-4cssom-1
  w3c/csswg-drafts#14263 · Filter by author Ahmad-S792 opened on Aug 4, 2026
  2

• [css-typed-om] Should parts of the CSS namespace be exposed on workers?

  Agenda+css-typed-omcssom-1
  w3c/csswg-drafts#14229 · Filter by author emilio opened on Jul 27, 2026
  6

• [cssom] Browsers disagree on getComputedStyle() values of some pseudo-elements

  cssom-1
  w3c/csswg-drafts#14210 · Filter by author cdoublev opened on Jul 21, 2026
  3

• [cssom-1] Replace "browsing context" with "navigable"

  cssom-1
  Unread
  w3c/csswg-drafts#14128·cdoublev opened Jul 3, 2026 · Updated Oct 21, 2026

• [cssom-1][css-cascade] Should getComputedStyle() return the empty string when element is not connected, part of the flat tree, etc?

  cssom-1
  w3c/csswg-drafts#14127 · Filter by author cdoublev opened on Jul 3, 2026

• [cssom-1] Dereference child rule parentStyleSheet when removing an ancestor rule

  cssom-1
  w3c/csswg-drafts#14109 · Filter by author cdoublev opened on Jun 30, 2026

• [cssom-1] Clarify initialization and access of a loading CSSImportRule.styleSheet

  css-cascade-4cssom-1
  w3c/csswg-drafts#14099 · Filter by author cdoublev opened on Jun 29, 2026

• [cssom] MediaList should use a set underneath

  cssom-1
  w3c/csswg-drafts#14076 · Filter by author annevk opened on Jun 22, 2026

• [css-view-transitions] [cssom] Inheritance of non-existing pseudo-elements.

  css-view-transitions-1cssom-1Needs EditsNeeds Testcase (WPT)
  w3c/csswg-drafts#13904 · Filter by author emilio opened on May 9, 2026
  8

• [cssom-1] Add a CSSImportRule attribute for scopes?

  css-cascade-6cssom-1
  w3c/csswg-drafts#13741 · Filter by author cdoublev opened on Mar 29, 2026

• [cssom-1] Browsers do not really implement the "disallow modification" flag

  cssom-1
  w3c/csswg-drafts#13650 · Filter by author domenic opened on Mar 13, 2026
  1

• [cssom-1] Append only one newline in @media rule block

  cssom-1
  Unread
  w3c/csswg-drafts#13386·cdoublev opened Jan 23, 2026 · Updated Oct 21, 2026
  2

• Support for building an optimal, nested CSSStylesheet programmatically

  cssom-1
  w3c/csswg-drafts#13367 · Filter by author bahrus opened on Jan 18, 2026
  2

• [cssom-1] Setting .style.border to "none" sets it to "medium"

  cssom-1
  w3c/csswg-drafts#13343 · Filter by author Psychpsyo opened on Jan 13, 2026
  1

• [cssom-1] Validate and normalize CSSStyleSheetInit.baseURL

  cssom-1
  Unread
  w3c/csswg-drafts#13293·cdoublev opened Jan 5, 2026 · Updated Oct 21, 2026
  2

• [cssom-1] Should CSSImportRule.styleSheet be defined when fetching failed?

  cssom-1
  w3c/csswg-drafts#13292 · Filter by author cdoublev opened on Jan 5, 2026

• [cssom-1] Unlink parent style sheet of @imported style sheet when removing @import

  cssom-1
  w3c/csswg-drafts#13291 · Filter by author cdoublev opened on Jan 5, 2026

• [cssom-1] Should CSSStyleSheet.href be null for a constructed style sheet?

  cssom-1
  w3c/csswg-drafts#12975 · Filter by author cdoublev opened on Oct 18, 2025

• [cssom-1] Should CSSStyleSheetInit.baseURL be validated?

  cssom-1
  w3c/csswg-drafts#12974 · Filter by author cdoublev opened on Oct 18, 2025
  3