wpt/css/css-conditional/container-queries/style-not-sharing-float.html at master · web-platform-tests/wpt · GitHub

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<!doctype html>
<title>CSS Container Queries Test: Check style is not sharing between cousins in the case of Container Queries</title>
<link rel="help" href="https://un5n798jx6qx6j0rmf2verhh.julianrbryant.com/css-conditional-5/#size-container">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="support/cq-testcommon.js"></script>
<style>
  .float {
    float: left;
    width: 25px;
    height: 25px;
  }
  .item {
    container-type: inline-size;
    height: 25px;
  }
  @container (width >= 50px) {
    .item div { color: lime; }
  }
  @container (width >= 150px) {
    .item div { color: green; }
  }
</style>
<div style="width: 150px">
  <div class="float"></div>
  <div class="item">
    <div id="target1"></div>
  </div>
  <div class="item">
    <div id="target2"></div>
  </div>
</div>
<script>
  setup(() => assert_implements_size_container_queries());

  test(() => {
    assert_equals(getComputedStyle(target1).color, "rgb(0, 255, 0)", "Second item container should be 100px wide");
    assert_equals(getComputedStyle(target2).color, "rgb(0, 128, 0)", "First item container should be 200px wide");
  }, "Check that style is not sharing in the case of Container Queries");
</script>