Highlight external links.
diff --git a/org.jacoco.doc/docroot/doc/empty.html b/org.jacoco.doc/docroot/doc/empty.html
index bb783c0..500ee20 100644
--- a/org.jacoco.doc/docroot/doc/empty.html
+++ b/org.jacoco.doc/docroot/doc/empty.html
@@ -12,6 +12,7 @@
<a href="../index.html" class="el_session">JaCoCo</a> >
<span class="el_source">Title</span>
</div>
+<div id="content">
<h1>Title</h1>
@@ -19,6 +20,7 @@
Text
</p>
+</div>
<div class="footer">
<div class="versioninfo"><a href="@HOMEURL@">JaCoCo</a> @VERSION@</div>
<a href="license.html">Copyright</a> © 2009, 2010 Mountainminds GmbH & Co. KG and Contributors