container-units-basic.html

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This WPT test may be referenced by the following Test IDs:
- /css/css-conditional/container-queries/container-units-basic.html - WPT Dashboard Interop Dashboard

<!doctype html>

<title>Container Relative Units: cqi, cqb, etc</title>

<link rel="help" href="https://drafts.csswg.org/css-conditional-5/#container-lengths">

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

<script src="support/cq-testcommon.js"></script>

<style>

  .inline { container-type: inline-size; }

  .size { container-type: size; }

  .inline.outer { width: 500px; }

  .size.outer { height: 400px; }

  .inline.inner { width: 300px; }

</style>

<div id=ref></div>

<div class="inline outer">

  <div class="size outer">

    <div class="inline inner">

      <div id=child>Test</div>

    </div>

  </div>

</div>

<script>

  setup(() => assert_implements_size_container_queries());

  function assert_unit_equals(element, actual, expected) {

    try {

      element.style.padding = actual;

      ref.style.padding = expected;

      assert_equals(getComputedStyle(element).paddingLeft,

                    getComputedStyle(ref).paddingLeft);

    } finally {

      element.style = '';

      ref.style = '';

  test(function() {

    assert_unit_equals(child, '0cqi', '0px');

    assert_unit_equals(child, '1cqi', '3px');

    assert_unit_equals(child, '10cqi', '30px');

    assert_unit_equals(child, '10cqw', '30px');

    assert_unit_equals(child, '10cqb', '40px');

    assert_unit_equals(child, '10cqh', '40px');

    assert_unit_equals(child, '10cqmin', '30px');

    assert_unit_equals(child, '10cqmax', '40px');

  }, 'Container relative units');

  test(function() {

    assert_unit_equals(child, '10cqi', '30px');

    assert_unit_equals(child, '10cqb', '40px');

    assert_unit_equals(child, 'calc(10cqi + 10cqb)', '70px');

    assert_unit_equals(child, 'max(10cqi, 10cqb)', '40px');

  }, 'Container relative units in math functions');

</script>