.navbox {
    border: #000;
    border-style: solid;
    border-width: 1px;

    background-color: #fff;

    box-sizing: border-box;
    z-index: 10;

    margin-bottom: 2px;
    height: 20px;
    font-size: 10pt;
    line-height: 18px;
}

.navnumber {
    color: #fff;
    background-color: #000;
    padding-right: 1px;
}