.menublacktabs{
width: 100%;
overflow: hidden;
border-bottom: 1px solid black; /*bottom horizontal line beneath tabs*/
}

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

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

.menublacktabs li a{
float: left;
display: block;
text-decoration: none;
margin: 0;
padding: 7px 8px; /*padding inside each tab*/
border-right: 1px solid white; /*right divider between tabs*/
color: white;
background: #414141; /*background of tabs (default)*/
}

.menublacktabs li a:visited{
color: white;
}

.menublacktabs li a:hover, .menublacktabs li.active a{
background: #12800c; /*background of tabs for hover state, plus tab with "selected" class assigned to its LI */
}