<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Test Reference</title>
<link rel="author" title="Emilio Cobos Álvarez" href="mailto:ecobos@igalia.com">
<style>
.flex {
  display: flex;
}
.inline {
  display: inline;
}
</style>
<p>Test passes if you see the word "PASS", with a "0" under the first "S", and no red</p>
<div class="flex">
P
  <div>A</div>
  <div class="inline">S<div>0</div></div>
  S
</div>