LayoutTests/fast/css/box-shadow-viewport-width.html - WebKit - Git at Google

 <!DOCTYPE html>
 <html>
     <head>
         <style>
             #boxshadowDiv{
                 margin-bottom: 10px;
                 height: 100px;
                 width: 100px;
                 background: #555;
                 box-shadow: 5vw 5vw 1vw 1vw orange;
             }
         </style>
     </head>
     <body>
 		<div id="boxshadowDiv"></div>
     </body>
 </html>
	<!DOCTYPE html>
	<html>
	<head>
	<style>
	#boxshadowDiv{
	margin-bottom: 10px;
	height: 100px;
	width: 100px;
	background: #555;
	box-shadow: 5vw 5vw 1vw 1vw orange;
	}
	</style>
	</head>
	<body>
	<div id="boxshadowDiv"></div>
	</body>
	</html>