mdn / mdn/browser-compat-data

css.types.line-width - Missing compatibility data

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browser:multiple data:css needs collector test p3
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Description

What type of issue is this?

Missing compatibility data

What information was incorrect, unhelpful, or incomplete?

https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Values/line-width#browser_compatibility

What browsers does this problem apply to, if applicable?

No response

What did you expect to see?

browser support for line-width, with the different properties listed... showing that it is supported in all browers for all properties the browser generally supports. (not supported in FF for row-rule-width, but FF doesn't support the property... so it's not a support of the <line-widht> data-type issue

MDN URL

https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Values/line-width

MDN metadata
MDN page report details
  • Query: css.types.line-width
  • Report started: 2026-09-15T12:59:41.260Z

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start with the MDN page for css.types.line-width and trace the corresponding browser-compatibility data entry. Compare the listed properties with the browser support expected in the report, then update the missing data. Done means the page shows compatibility for the relevant properties without implying support for unsupported properties such as row-rule-width in Firefox.

Written by the indexing model from the issue text.

Assessment

Tech stack
json
Domain
data
Issue type
Bug
Difficulty
2/5
Estimated time
1-3 hours
Activity status
Active
Clarity
Mostly clear
Newbie friendliness
68/100

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