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chromium/third_party/blink/web_tests/external/wpt/css/css-conditional/container-queries/inline-size-containment.html 

<!doctype html>
<title>CSS Container Queries Test: query of inline-size container is affected by min-width property</title>
<link rel="help" href="https://drafts.csswg.org/css-conditional-5/#size-container">
<link rel="author" title="Morten Stenshorne" href="mailto:[email protected]">
<style>
  #keg { container-type: inline-size; }
  @container (max-width: 200px) {
    #target { height: 400px; }
  }
  @container (min-width: 400px) {
    #target { height: 20px; }
  }
</style>
<div id="ancestry">
  <div id="keg">
    <div id="target">
      <div style="height:50px;"></div>
    </div>
  </div>
</div>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="support/cq-testcommon.js"></script>
<script>
  setup(() => assert_implements_container_queries());

  test(()=> {
    ancestry.style.width = "100px";
    assert_equals(keg.offsetHeight, 400);

    ancestry.style.width = "300px";
    assert_equals(keg.offsetHeight, 50);

    ancestry.style.width = "500px";
    assert_equals(keg.offsetHeight, 20);
  }, "inline-size containment only");
</script>