css/css-multicol/offsetProps-001.html

<!DOCTYPE html>
<title>offsetWidth and offsetHeight of fragmented inline</title>
<link rel="author" title="Morten Stenshorne" href="mailto:mstensho@chromium.org">
<link rel="help" href="https://drafts.csswg.org/cssom-view/#extensions-to-the-htmlelement-interface">
<link rel="stylesheet" type="text/css" href="/fonts/ahem.css">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<div style="columns:3; column-fill:auto; column-gap:10px; width:320px; height:50px; font:8px/16px Ahem; orphans:1; widows:1; background:lightgray;">
  p<br>
  ppp
  <span id="outer" style="background:cyan;">
    <span id="middle" style="background:yellow;">
      <span id="inner1" style="color:blue;">
        pppp pppp
      </span>
      <span id="inner2" style="color:green;">
        pppp pppp
      </span>
    </span>
    pppp pppp pppp pppp pppp pppp pppp pppp
    </span>
  </span>
</div>
<script>
setup({ explicit_done: true });
document.fonts.ready.then(() => {
  test(() => {
    assert_equals(outer.offsetWidth, 292);
    assert_equals(outer.offsetHeight, 40);
  }, "outer");

  test(() => {
    assert_equals(middle.offsetWidth, 150);
    assert_equals(middle.offsetHeight, 40);
  }, "middle");

  test(() => {
    assert_equals(inner1.offsetWidth, 64);
    assert_equals(inner1.offsetHeight, 24);
  }, "inner1");

  test(() => {
    assert_equals(inner2.offsetWidth, 110);
    assert_equals(inner2.offsetHeight, 40);
  }, "inner2");

  done();
});
</script>