div.tabcontainer {
 width: 500px;
 background: #eee;
 border: 1px solid #000000;
}
ul.tabnav {
 list-style-type: none;
 margin: 0;
 padding: 0;
 width: 100%;
 overflow: hidden;
}

ul.tabnav a {
 display: block;
 width: 100%;
}

ul.tabnav a:hover {
 background: #ccc;
}

ul.tabnav li {
 float: left;
 width: 125px;
 margin: 0;
 padding: 0;
 text-align: center;
}

div.tabcontents {
 height: 290px;
 background: #ccc;
 overflow: hidden;
 border-top: 1px solid #011;
 padding: 3px;
 
}

div.tabcontents div.content {
 float: left;
 width: 100%;
 height: 102%;
 overflow-y: auto;
}

div.tabcontents div.content h2 {
 margin-top: 3px;
}