.mattblacktabs {
    float: left
    widthX: 100%;
    overflow: hidden;
    padding: 10px 0 5px 0;
    /* border-bottom: 3px solid #678FC5; */ /*bottom horizontal line that runs beneath tabs*/
}

.mattblacktabs ul {
    margin: 0;
    padding: 0;
    padding-left: 10px; /*offset of tabs relative to browser left edge*/
    font: bold 12px Verdana;
    list-style-type: none;
}

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

.mattblacktabs li a {
    float: left;
    display: block;
    text-decoration: none;
    margin: 0;
    padding: 7px 8px; /*padding inside each tab*/
    border-right: 4px solid white; /*right divider between tabs*/
    color: #333;
    background: #E6E6E6; /*background of tabs (default state)*/
}

.mattblacktabs li a:visited {
    color: #333;
}

.mattblacktabs li a:hover {
    background: #678FC5; /*background of tabs for hover state */
    color: #FFF;
    text-decoration: none;
}

.mattblacktabs .mattblacktabs li.selected a {
    background: #000; /*background of tabs with "selected" class assigned to its LI */
}