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Support for building an optimal, nested CSSStylesheet programmatically

#13367

· bahrus opened

on Jan 18, 2026

[cssom-1] Setting <code>.style.border</code> to <code>"none"</code> sets it to <code>"medium"</code>

#13343

· Psychpsyo opened

on Jan 13, 2026

[cssom-1] Validate and normalize CSSStyleSheetInit.baseURL

w3c/csswg-drafts

#13293

· cdoublev opened

on Jan 5, 2026

[cssom-1] Should <code>CSSImportRule.styleSheet</code> be defined when fetching failed?

#13292

· cdoublev opened

on Jan 5, 2026

[cssom-1] Unlink parent style sheet of <code>@import</code>ed style sheet when removing <code>@import</code>

#13291

· cdoublev opened

on Jan 5, 2026

[cssom-1] Should <code>CSSStyleSheet.href</code> be <code>null</code> for a constructed style sheet?

#12975

· cdoublev opened

on Oct 18, 2025

[cssom-1] Should <code>CSSStyleSheetInit.baseURL</code> be validated?

#12974

· cdoublev opened

on Oct 18, 2025

[cssom] Should new rules serialize fully on a single line?

#12959

· andruud opened

on Oct 16, 2025

[css-cascade-5] [cssom] Serialization of shorthands with reset-only subproperties is under-defined

#12846

· AtkinsSJ opened

on Sep 23, 2025

[cssom] Missing/outdated serialization rules for pseudo-classes

#12669

· AtkinsSJ opened

on Aug 28, 2025

[cssom-1] Spec disagrees with WPT on resolution and time serialization

#12616

· AtkinsSJ opened

on Aug 18, 2025

[cssom] Autogeneration for <code>partial interface CSSStyleProperties</code> and *Descriptors?

#12478

· saschanaz opened

on Jul 12, 2025