<!DOCTYPE html>
<html>
<head>
<title>-webkit-xxx-large font-size is identical to xxx-large value</title>
<style>
p {
font-size: -webkit-xxx-large;
}
</style>
</head>
<body>
<p>This text should appear the same as text with font-size: xxx-large;</p>
</body>
</html>