CSS - Two level CSS Tabs menu

<body> <h1><a rel="nofollow" href="http://www.dynamicdrive.com/style/csslibrary/item/two-level-css-tabs-menu/" >Two level CSS Tabs menu</a></h1> <p>Building on a regular CSS Tabs Menu, this CSS menu supports second level content that can be associated with specific tabs. By giving both a tab and the desired sub content a class of "selected", the sub content becomes visible on the page.</p> <p><a href="http://www.tutcity.com/">More Tutorials</a></p> </body>