All issues

[css-mixins-1] Using a scoping rule breaks author expectations, can we get rid of it?

Needs Testcase (WPT)

#13727

· LeaVerou opened

on Mar 25, 2026

[css-conditional] `@supports-condition`, for larger feature queries and named reuse

css-conditional-5

css-conditional-6

Needs Testcase (WPT)

#12622

· LeaVerou opened

on Aug 19, 2025

[selectors-5][css-syntax] Resolve to use `'/' [<ident> | <function>] '/'` syntax for all future combinators (except for good reason)

#12451

· LeaVerou opened

on Jul 6, 2025

[css-color-6] How to support color math involving more than one color?

#11533

· LeaVerou opened

on Jan 18, 2025

[css-values-5] Accept more than 2 values in `*-mix(<progress>, ...)` and `progress()` notations

Closed Accepted by CSSWG Resolution

#11530

· LeaVerou opened

on Jan 18, 2025

[css-scoping][selectors] `:root` should resolve to `:host` in shadow trees

#11000

· LeaVerou opened

on Oct 4, 2024

[css-cascade][css-syntax] Global `revert-rule` keyword that works like `revert-layer` but for the current rule only

#10443

· LeaVerou opened

on Jun 13, 2024

[css-color-4] Expand the concept of analogous components to analogous sets of components to minimize `none` → `0` conversions

#10210

· LeaVerou opened

on Apr 15, 2024

[css-ui] Standardize tooltip styling and expose as `::tooltip`

#8930

· LeaVerou opened

on Jun 7, 2023

[css-color-6] `color-extract()` function to extract individual color components

#6937

· LeaVerou opened

on Jan 9, 2022

[css-images] @image rule for manipulating images

#6807

· LeaVerou opened

on Nov 9, 2021

[css-display] Why is display listed as not animatable instead of animation type: discrete?

Closed Accepted by CSSWG Resolution

#6429

· LeaVerou opened

on Jul 7, 2021