css/css-text/text-align/text-align-last-empty-inline.html

<!DOCTYPE html>
<title>Tests justification of empty inline element</title>
<link rel="author" title="Emil A Eklund" href="eae@chromium.org">
<link rel="help" href="https://drafts.csswg.org/css-text-3/#text-align-last-property" title="6.3. Last Line Alignment: the text-align-last property">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<style>
  #justify {
    text-align-last: justify;
    margin-bottom: 5px;
  }
  #justify > span, #reference > span {
    padding: 1px;
    background: black;
  }
  #reference {
    text-align: center;
  }
</style>
<body>
  <div id="justify"><span></span></div>
  <div id="reference"><span></span></div>
  <p>
    The two black line segments above should align.
  </p>
</body>
<script>
test(function() {
  const justify_element = document.getElementById('justify');
  const justify_rect = justify_element.firstElementChild.getBoundingClientRect();
  const ref_element = document.getElementById('reference');
  const ref_rect = ref_element.firstElementChild.getBoundingClientRect();
  assert_equals(justify_rect.left, ref_rect.left);
  assert_equals(justify_rect.right, ref_rect.right);
}, 'content that cannot be justified should be centered when text-align-last is justify');
</script>