chromium/third_party/blink/web_tests/external/wpt/css/css-contain/contain-layout-baseline-004.html

<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Containment Test: Layout containment supress baseline in table cells</title>
<link rel="author" title="Manuel Rego Casasnovas" href="mailto:[email protected]">
<link rel="help" href="https://drafts.csswg.org/css-contain-1/#containment-layout">
<link rel="match" href="reference/contain-layout-baseline-004-ref.html">
<meta name=assert content="Table cells with layout containment are treated as having no baseline, for that reason their baseline is synthesized from the cell's border box when they're baseline aligned.">
<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
<style>
#table {
  display: table;
  font: 100px/1 Ahem;
}

#table > * {
  display: table-cell;
}

#first {
  color: blue;
}

#second {
  color: green;
  contain: layout;
}
</style>
<p>Test passes if there is not a rectangle as the two boxes ("blue" and "green") are not baseline aligned.</p>
<div id="table">
  <div id="first">X</div>
  <div id="second">X</div>
</div>