.nav:after,
.nav:before {
    content:"";
    display: table;
}
.nav:after {
    clear:both;
    overflow:hidden;
}
.nav {
    margin: 0 0 0 0;
    background: white;
    font-family: Arial,Verdana,sans-serif;
    zoom: 1;
    margin-left: 0;
    padding-left: 0;
}
.nav li {
    list-style: none outside none;
    float: left;
    position: relative;
    margin-right: 10px;
}
.nav .active {
    z-index: 3;
}
.nav li:before,
.nav li:after,
.nav  a:before,
.nav  a:after {
    content:"";
    position: absolute;
    bottom:0;
}

.nav a {
    float: left;
    padding: 5px 10px;
    text-decoration: none;
    // color: white;
    background: white;
    // border: 1px solid gray;
    // border-bottom: none;
    border-radius: 5px 5px 0 0;
    box-shadow: 2px -1px 3px rgba(0,0,0,.3), -1px -1px 3px rgba(0,0,0,.3)
}
.nav .active a {
    color: white;
    background-color: #67a7e3;
}