css/css-cascade/revert-val-005.html

<!DOCTYPE html>
<title>CSS Cascade: 'revert' in css-logical properties</title>
<link rel="help" href="https://drafts.csswg.org/css-cascade/#default">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<style>
  #h1_physical {
    margin: 0px;
    margin: revert;
  }
  #h1_logical {
    margin: 0px;
    margin-inline-start: revert;
    margin-inline-end: revert;
    margin-block-start: revert;
    margin-block-end: revert;
  }
</style>
<h1 id=h1_physical></h1>
<h1 id=h1_logical></h1>
<h1 id=ref></h1>
<script>
  test(function() {
    let actual = getComputedStyle(h1_physical).marginTop;
    let expected = getComputedStyle(ref).marginTop;
    // This test assumes that the UA style sheet sets a non-0px value on
    // <h1> elements:
    assert_not_equals(expected, '0px');
    assert_equals(actual, expected);
  }, 'The revert keyword works with physical properties');

  test(function() {
    let actual = getComputedStyle(h1_logical).marginTop;
    let expected = getComputedStyle(ref).marginTop;
    // This test assumes that the UA style sheet sets a non-0px value on
    // <h1> elements:
    assert_not_equals(expected, '0px');
    assert_equals(actual, expected);
  }, 'The revert keyword works with logical properties');
</script>