leeoniya / leeoniya/dropcss

Improperly purged p:not(.exclude, .special) { color: blue; font-weight: bold; }

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Dominant language
HTML
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Description

CSS:

p:not(.exclude,.special) {
  color: blue;
  font-weight: bold;
}

HTML:

<div id="root">
  <p>This is a paragraph.</p>
  <p class="exclude">This paragraph is excluded from the style.</p>
  <p class="special">This paragraph is excluded from the style.</p>
</div>

Only happens when there are multiple selectors inside :not()

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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 by reproducing the issue with the CSS and HTML examples in the report, focusing on the comma-separated selectors inside :not(). Trace how this selector is handled during purging; done means the p:not(.exclude,.special) rule is retained correctly while excluded paragraphs remain excluded.

Written by the indexing model from the issue text.

Assessment

Tech stack
css
Domain
tooling
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
45/100

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