css.selectors.highlight - < ::highlight() partially unavailable on MacOS safari version 18.4 >
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browser:safari
data:css
info needed
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Description
What type of issue is this?
Incorrect support data (example:Safari says "17" but partially unsupported in "18")
What information was incorrect, unhelpful, or incomplete?
on MacOS Safari 18.4，::highlight is ignored when combined with display:-webkit-box
What browsers does this problem apply to, if applicable?
in MacOS Safari 18.4
What did you expect to see?
::highlight can apply to all characters
Did you test this? If so, how?
yes, ::highlight works differently in Safari version 16 and version 18
Can you link to any release notes, bugs, pull requests, or MDN pages related to this?
No response
Do you have anything more you want to share?
No response
MDN URL
https://developer.mozilla.org/en-US/docs/Web/CSS/::highlight
MDN metadata
MDN page report details
- Query:
css.selectors.highlight - Report started: 2025-07-18T10:37:34.354Z
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with the MDN ::highlight() page and the browser-compat-data entry for the css.selectors.highlight query. Verify the reported MacOS Safari 18.4 behavior, then update the compatibility data so its partial support and display:-webkit-box limitation are accurately represented.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- css
- Domain
- documentation
- Issue type
- Bug
- Difficulty
- 2/5
- Estimated time
- 1-3 hours
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 45/100