File: scope-import-scope-pseudo.tentative.html

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<!DOCTYPE html>
<title>@import scope(), :scope rules in imported stylesheet</title>
<link rel="help" href="https://github.com/w3c/csswg-drafts/issues/7348">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<style>
@import url("resources/scope-imported.css") scope((.scope));
</style>
<main id=main>
  <div class=scope>
    <div class=y>Inside</div>
    <div>
      <div class=y>Inside, but should not match</div>
    </div>
  </div>
  <div class=y>Outside</div>
</main>
<script>
  test(() => {
    let inside = main.querySelector('.scope > .y');
    assert_equals(getComputedStyle(inside).getPropertyValue('--y'), '1');

    let inside_no_match = main.querySelector('.scope > div > .y');
    assert_equals(getComputedStyle(inside_no_match).getPropertyValue('--y'), '');

    let outside = main.querySelector('#main > .y');
    assert_equals(getComputedStyle(outside).getPropertyValue('--y'), '');
  }, 'The :scope pseudo-class works in imported stylesheets');
</script>