w3c / w3c/css-validator

Flags `::part(...)` as an Error

Open
#384 0 comments 0 reactions 0 assignees View on GitHub

Nobody has claimed this yet.

Dominant language
Java
Stars
250
Forks
123
PR merge metrics
No merged PRs in 30d

Description

Does not seem to support web component parts, e.g.:

#myid::part(foo) {
   color: red;
}

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

No file or test is named in the report. Start by reproducing the example selector with the CSS validator and trace where ::part(foo) is rejected. Done means valid web component part selectors are accepted without being reported as errors, with coverage added for the shown case.

Written by the indexing model from the issue text.

Assessment

Tech stack
css, java
Domain
tooling, web-dev
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.