LayoutTests/fast/css/custom-properties/inheritance.html - WebKit - Git at Google

 <html>
 <head>
 <style>
 html { --one: 10px; }
 body { --one: 50px; --one: inherit; }
 </style>
 <body>
 <script>
 document.write(getComputedStyle(document.body).getPropertyValue("--one"))
 </script>
 </body>
 </html>
	<html>
	<head>
	<style>
	html { --one: 10px; }
	body { --one: 50px; --one: inherit; }
	</style>
	<body>
	<script>
	document.write(getComputedStyle(document.body).getPropertyValue("--one"))
	</script>
	</body>
	</html>