se.t19 .test { background: red top 108px; }
   .case.t20 .test { background: red top top; }
   .case.t21 .test { background: red left right; }
   .case.t22 .test { background: red left left; }
  </style>
 </head>
<body>
  <p>In all the following boxes, the fuchsia diamond should be surrounded by a ring.</p>
  <div class="case a"><div class="test"><div class="control"></div></div></div>
  <div class="case b"><div class="test"><div class="control"></div></div></div>
  <div class="case c"><div class="test"><di