LayoutTests/fast/inline/blocks-in-inline-offsetwidth.html

<style>
.container {
  width: 400px;
  font-family: Ahem;
  font-size: 10px;
}
</style>
<div class=container>
  <span id=target>
    <div>text content</div>
  </span>
</div>
<pre id=log></pre>
<script>
window.testRunner?.dumpAsText();
log.textContent = `span offsetWidth: ${target.offsetWidth} offsetHeight:${target.offsetHeight}`;
</script>