=""/>
  <meta name="assert" content="Inline element with 'visibility:hidden' must not prevent a text-decoration value being applied to the line box"/>
  <style type="text/css">
  #test{
  text-decoration:underline;
  font-size:80px;
  background:yellow;
  float:left;
  }
  #test span{
  visibility:hidden;
  }
  </style>
 </head>

 <body>
  <p>To pass, there <strong>must</strong> be an underline spanning the full width of the yellow box.</p>
  <div id="test">
   visible
   <span>hidden</span>
  </div>
 </bod