ul.header-first li a {
    background: url("bg-header-first.gif") repeat-x scroll 0 0 transparent;
    border-left: 3px solid #FFFFFF;
    height: 28px;
    line-height: 12px;
    text-align: center;
    width: 137px;
    display: block;
    padding-top: 2px;
}

ul.header-first a:hover
{
   background-color: #fff;
   background-image: none;
}