div.header ul
{
    float: left;
    list-style-type: none;
    padding: 0;
    margin: 0;
}
div.header ul.nav
{
    width: 894px;
    padding: 0 0 0 4px;
}
div.header ul.nav li
{
    text-indent: -8000px;
    float: left;
    padding: 0;
    margin: 0;
    font-size: .05em;
    line-height: .05em;
    width: 167px;
    height: 30px;
    position: relative;
    margin-right: -22px;
}

div.header ul.nav li a
{
    float: left;
    text-decoration: none;
    width: 167px;
    height: 30px;
}

div.header ul.nav li.home{z-index: 50;}
div.header ul.nav li.home, div.header ul.nav li.home a
{
    background: url(../images/home.png) no-repeat;
}
div.header ul.nav li.services{z-index: 40;}
div.header ul.nav li.services, div.header ul.nav li.services a
{
    background: url(../images/services.png) no-repeat;
}
div.header ul.nav li.testimonials{z-index: 30;}
div.header ul.nav li.testimonials, div.header ul.nav li.testimonials a
{
    background: url(../images/testimonials.png) no-repeat;
}
div.header ul.nav li.sales{z-index: 20;}
div.header ul.nav li.sales, div.header ul.nav li.sales a
{
    background: url(../images/sales.png) no-repeat;
}
div.header ul.nav li.careers{z-index: 10;}
div.header ul.nav li.careers, div.header ul.nav li.careers a
{
    background: url(../images/careers.png) no-repeat;
}
div.header ul.nav li.contact{z-index: 0;margin: 0;}
div.header ul.nav li.contact, div.header ul.nav li.contact a
{
    background: url(../images/contact.png) no-repeat;
}

div.header ul.nav li a.active, div.header ul.nav li a:hover
{
    text-decoration: none;
    background-position: bottom left;
}