Vorlach:NaviBlock/style.css

 /* Standard-Navigationsleisten */
 div.BoxenVerschmelzen,
 div.NavFrame {
    clear: both;
    border: 1px solid #aaaaaa;
    border-collapse: collapse;
    font-size: 95%;
    padding: 2px;
    text-align: center;
    }
 div.BoxenVerschmelzen div.NavFrame {
    margin-top: 0;
    border-style: none;
    border-style: hidden;
    }
 div.NavFrame + div.NavFrame {
    margin-top: 0;
    border-top-style: none;
    border-top-style: hidden;
    }
 div.NavFrame div.NavHead {
    height: 1.6em;
    font-size: 100%;
    background-color: #efefef;
    }
 div.NavFrame p {font-size: 100%;}
 div.NavFrame div.NavContent {font-size: 100%;}
 div.NavFrame div.NavContent p {font-size: 100%;}