n't position self-link in headings off-screen */
  h2 > a.self-link,
  h3 > a.self-link,
  h4 > a.self-link,
  h5 > a.self-link,
  h6 > a.self-link {
    left: auto;
    top: auto;
  }
}

@media print {
  .removeOnSave {
    display: none;
  }
}
</style>
		
		
		
		
		<link href="common/css/common.css" rel="stylesheet" type="text/css">
		
	<link rel="canonical" href="https://www.w3.org/publishing/epub3/index.html"><style>var {
  position: relative;
  cursor: pointer;
  display: inline-block;
}

var[data-typ