css/css-layout-api/baseline/flex-baseline.https.html

<!DOCTYPE html>
<html class=reftest-wait>
<link rel="help" href="https://drafts.css-houdini.org/css-layout-api/#interaction-alignment">
<link rel="match" href="../green-square-ref.html">
<meta name="assert" content="This test checks that a baseline aligned element uses the baseline set in layout()."/>
<style>
.parent {
  background: red;
  display: flex;
  padding: 0 10px;
  width: 80px;
  height: 100px;
  align-items: baseline;
}

.child {
  color: red;
}

@supports (display: layout(parent)) {
  .parent {
    background: green;
  }
  .child {
    display: layout(child);
  }
}
</style>
<script src="/common/reftest-wait.js"></script>
<script src="/common/worklet-reftest.js"></script>

<div class="parent">
  <div style="position: absolute; top: 50px; width: 50px; height: 25px; background: green;"></div>
  <div></div>
  <div class="child">text</div>
</div>

<script id="code" type="text/worklet">
registerLayout('child', class {
  async intrinsicSizes() {}
  async layout(children) {
    const childFragments = await Promise.all(children.map(child => child.layoutNextFragment({})));
    return {childFragments, baseline: -50};
  }
});
</script>

<script>
importWorkletAndTerminateTestAfterAsyncPaint(CSS.layoutWorklet, document.getElementById('code').textContent);
</script>
</html>