.mattblackmenu ul{
margin: 0;
padding: 0;
font: 12px Arial, Verdana, Sans-serif;
list-style-type: none;
border-bottom: 1px solid gray;
background: #758792;
overflow: hidden;
width: 100%;
}

.mattblackmenu li{
display: inline;
margin: 0;
}

.mattblackmenu li a{
float: left;
display: block;
text-decoration: none;
margin: 0;
padding: 4px 20px; /*padding inside each tab*/
border-right: 1px solid #ffffff; /*right divider between tabs*/
color: #ffffff;
background: #758792;
}

.mattblackmenu li a:visited{
color: #ffffff;
}

.mattblackmenu li a:hover{
background: #4f6e7e; /*background of tabs for hover state */
font-weight: normal;
}

.mattblackmenu a.selected{
background: #4f6e7e; /*background of tab with "selected" class assigned to its LI */
}