chromium/third_party/blink/web_tests/external/wpt/css/css-fonts/font-kerning-01.html

<!DOCTYPE html>
<html lang="en">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<title>CSS Test:  font-kerning basic syntax support</title>
<link rel="author" title="Chris Lilley" href="[email protected]">
<link rel="match" href="font-kerning-01-ref.html">
<link rel="help" href="https://www.w3.org/TR/css-fonts-3/#font-kerning-prop">
<meta name="assert" content="">
<style>
  .test {
    margin: 20px;
	  width: 100px;
    height: 100px;
    background-color: red
  }
  @supports (font-kerning: auto) {
    section.test { background-color: green; }
  }
</style>
<body>

<p>Test passes if there is a green square, and no red. </p>
<section class="test">

</section>