third_party/WebKit/LayoutTests/images/imagemap-overflowing-polygon-focus-ring.html - chromium/src - Git at Google

 <html>
 <body>
 <p>Assuming the port-specific theme draws focus rings, this test can be used to ensure that a focus ring is drawn for an &lt;area shape=&quot;polygon&quot;&gt; that is overflowing the bounds for the img element. This test PASSED if a clipped star-shaped focus ring is drawn around the &lt;area&gt; in the imagemap (below).</p>
 <map name="imagemap">
     <area id="area" shape="polygon" coords="60,-10,0,160,150,40,-30,40,120,160" href="#dummy" />
 </map>
 <img width="128" height="128" usemap="#imagemap" />
 <script>document.getElementById("area").focus()</script>
 </body>
 </html>
	<html>
	<body>
	<p>Assuming the port-specific theme draws focus rings, this test can be used to ensure that a focus ring is drawn for an <area shape="polygon"> that is overflowing the bounds for the img element. This test PASSED if a clipped star-shaped focus ring is drawn around the <area> in the imagemap (below).</p>
	<map name="imagemap">
	<area id="area" shape="polygon" coords="60,-10,0,160,150,40,-30,40,120,160" href="#dummy" />
	</map>
	<img width="128" height="128" usemap="#imagemap" />
	<script>document.getElementById("area").focus()</script>
	</body>
	</html>