<!doctype html>
<title>CSS Container Queries Test: query of inline-size container in vertical-rl</title>
<link rel="help" href="https://drafts.csswg.org/css-contain-3/#size-container">
<link rel="author" title="Morten Stenshorne" href="mailto:mstensho@chromium.org">
<style>
  #ancestry { writing-mode: vertical-rl; }
  #keg { container-type: inline-size; }
  @container (max-height: 200px) {
    #target { width: 400px; }
  }
  @container (min-height: 400px) {
    #target { width: 20px; }
  }
</style>
<div id="ancestry">
  <div id="keg">
    <div id="target">
      <div style="width: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.height = "100px";
    assert_equals(keg.offsetWidth, 400);

    ancestry.style.height = "300px";
    assert_equals(keg.offsetWidth, 50);

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