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Add named-feature() feature #4272

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Add named-feature() feature #4272

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ed645eb
Add `named-feature()` feature
ddbeck Aug 27, 2026
5cc68ae
Add CSS group
ddbeck Sep 3, 2026
393684d
Complete the description
ddbeck Sep 3, 2026
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10 changes: 10 additions & 0 deletions features/supports-named-feature.yml
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name: named-feature()
description: >
The `named-feature()` function, when used with `@supports`, checks if a named CSS behavior is supported.
The CSS behavior names are defined by specification.
For example, `@supports named-feature(anchor-position-follows-transforms)` checks whether anchor-positioning applies after transforms."
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@ddbeck ddbeck Sep 3, 2026

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@rviscomi @captainbrosset Apparently one has to save a file before committing. 😅

I took both of your suggestions and tried my best to synthesize one. Want to take another look?

spec: https://drafts.csswg.org/css-conditional-5/#typedef-supports-named-feature-fn
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group:
- css
compat_features:
- css.at-rules.supports.named-feature
11 changes: 11 additions & 0 deletions features/supports-named-feature.yml.dist
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# Generated from: supports-named-feature.yml
# Do not edit this file by hand. Edit the source file instead!

status:
baseline: false
support:
chrome: "150"
chrome_android: "150"
edge: "150"
compat_features:
- css.at-rules.supports.named-feature