The webpage uses DIV tages with id=name to allow specific styling for the section.

The section: div class=menu followed div id=main

Sailing Club example

To get the Tab and box to join use a white border bottom and border-top:none

#menu a:visited.active	{ background: #fff; border-bottom : 2px solid #fff;color : #000; }
#main { background: #FFf; border: 1px solid #666; border-top: none;  } 

sailing club

We're a friendly sailing club based on the east coast.

New members are always very welcome. The club is open to everybody irrespective of sailing experience, although all members must be 18 years or older. You can join the club for dinghy and/or yacht sailing and at a level that suites you from complete beginner to experienced boat owner.

If all this sounds good and you'd like to know more, we'd love to hear from you. Get in touch via the contact form on the Contact tab above.

W3C's Menu example

W3C's example