third_party/WebKit/LayoutTests/fast/css-generated-content/015.html - chromium/src - Git at Google

 <head>
         <style>
             form {display: inline}
             .clear:after {content: "."}
             .clear {display:table}
         </style>
 </head>

 <body>

     <div class="clear">
         <form>
             <h3>There should be a fourth dot bellow...</h3>
         </form>
     </div>

 </body>
 </html>
	<head>
	<style>
	form {display: inline}
	.clear:after {content: "."}
	.clear {display:table}
	</style>
	</head>

	<body>

	<div class="clear">
	<form>
	<h3>There should be a fourth dot bellow...</h3>
	</form>
	</div>

	</body>
	</html>