<html xmlns="http://www.w3.org/1999/xhtml">
 <head>
  <title>run-in and sibling blocks</title>
  <style type="text/css">
   .r { color: white; display: run-in; }
   .b { backgound: green; display: block; }
   .fail { background: red; line-height: 0; }
  </style>
 </head>
 <body>
  <p>The next line should be green.</p>
  <div class="r">This line should be green.</div>
  <div class="b"></div>
  <div class="fail">
   <span>The line above should be green.</span>
  </div>
 </body>
</html>