Contact emails
[email protected]

Explainer
No information provided


Specification
https://drafts.csswg.org/css-pseudo-4/#selectordef-highlight-highlight-name-selector


Summary
Introduces a universal selector for custom highlights, ::highlight(*), which 
matches the highlight pseudo-elements of all custom highlights regardless of 
their name. The * argument contributes zero specificity, so its declarations 
act as a base style that rules naming a specific highlight override through the 
cascade.


Blink component
Blink>CSS


Web Feature ID
Missing feature


Motivation
Styling shared properties across custom highlights requires repeating the same 
declarations for every registered name. The CSSWG resolved to allow 
::highlight(*).


Initial public proposal
https://github.com/w3c/csswg-drafts/issues/9091


Search tags
Custom Highlight


TAG review
No information provided


TAG review status
Pending


Goals for experimentation
None


Risks




Interoperability and Compatibility
No information provided

Gecko: Under consideration 
(https://github.com/mozilla/standards-positions/issues/1460)

WebKit: No signal (https://github.com/WebKit/standards-positions/issues/728)

Web developers: No signals

Other signals:


WebView application risks

Does this intent deprecate or change behavior of existing APIs, such that it 
has potentially high risk for Android WebView-based applications?
No information provided



Debuggability
No information provided


Will this feature be supported on all six Blink platforms (Windows, Mac, Linux, 
ChromeOS, Android, and Android WebView)?
Yes


Is this feature fully tested by web-platform-tests?
Yes



Flag name on about://flags
No information provided


Finch feature name
No information provided


Non-finch justification
No information provided


Rollout plan
Will ship enabled for all users


Requires code in //chrome?
False


Tracking bug
https://issues.chromium.org/issues/408003366


Estimated milestones


Shipping on desktop 158

Shipping on Android 158

Shipping on WebView 158




Anticipated spec changes

Open questions about a feature may be a source of future web compat or interop 
issues. Please list open issues (eg links to known github issues in the project 
for the feature specification) whose resolution may introduce web 
compat/interop risk (eg, changing to naming or structure of the API in a 
non-backward-compatible way).
No information provided


Link to entry on the Chrome Platform Status
https://chromestatus.com/feature/5174965228929024?gate=6101897755885568


Links to previous Intent discussions
Intent to Prototype: 
https://groups.google.com/a/chromium.org/d/msgid/blink-dev/6a7e62a2.2164c308.b1fa7.0128.GAE%40google.com



This intent message was generated by Chrome Platform Status.

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