chromium/third_party/blink/web_tests/external/wpt/css/css-fonts/size-adjust-02-ref.html

<!DOCTYPE html>
<meta charset="utf-8">
<link rel="author" href="mailto:[email protected]">
<title>Tests that font-size-adjust overrides the size-adjust descriptor</title>
<style>
@font-face {
  font-family: reference-font;
  src: local(Ahem), url(/fonts/Ahem.ttf);
  unicode-range: U+41-5A; /* Uppercase ASCII only */
}

div {
  font-size: 40px;
  line-height: 100px;
  font-size-adjust: 0.5;
}

.reference {
  font-family: reference-font, sans-serif;
}

.large {
  font-size: 60px;
}
</style>

<p>Without size-adjust applied to the Ahem font.</p>

<div>
  <span class="reference">The Quick Brown Fox</span>
</div>

<p>With size-adjust:150% there should be no change as font-size-adjust overrides it.</p>

<div>
  <span class="reference">The Quick Brown Fox</span>
</div>