mozilla-release/layout/reftests/text/osx-font-smoothing-2-ref.html

<!DOCTYPE HTML>
<!-- testcase for https://bugzilla.mozilla.org/show_bug.cgi?id=900975 -->
<html>
<head>
<style type="text/css">
p {
  margin: 20px;
  font-family: Arial, sans-serif;
  background-color: black;
  color: white;
}
.smoothing-gray {
  -moz-osx-font-smoothing: grayscale;
}
.smoothing-auto {
  -moz-osx-font-smoothing: auto;
}
span {
  display: inline-block;
}
</style>
</head>
<body lang="en">
<p class="smoothing-auto"><span>foo</span> <span class="smoothing-gray">bar</span></p>
</body>
</html>