css/css-backgrounds/css3-background-clip.html

<!DOCTYPE html>
<html>
<head>
  <meta charset="UTF-8">
  <title>CSS Background-clip Test: the background is pruned to content box</title>
  <link rel="author" title="Xie Bing" href="mailto:451887565@qq.com">
  <link rel="reviewer" title="Dayang Shen" href="mailto:shendayang@baidu.com"> <!-- 2013-09-03 -->
  <link rel="help" href="http://www.w3.org/TR/css3-background/#the-border-width">
  <link rel="match" href="reference/css3-background-clip-ref.html"/>
  <style type="text/css">
    div{
      width:300px;
      height:300px;
      padding:50px;
      border:10px dashed #000000;
      background-color:yellow;
      background-clip:content-box;
    }
  </style>
</head>
<body>
  <p>The test passes if the background is pruned to content box.</p>
  <div>Inner area!</div>
</body>
</html>