.docnavbar {
    padding: 0.2em 0;
    overflow:auto;
}
.docnavbar.showtoc {
    border-top: 1px solid __border__;
    border-bottom: 1px solid __border__;
    margin: 1em 0;
}
.docnavbar .leftnav {
    float:left;
    width: 33%;
}
.docnavbar .centernav {
    width: 34%;
    float:left;
    text-align: center;
}
.docnavbar .rightnav {
    float:right;
    width: 33%;
    text-align: right;
}