html, body {
    font-family: Arial;
}

div#vertikal {
    background-color: #AAFFD4;
}

div#horizontal {
    background-color: #AAFFD4;
}

div#horizontal li {
    float: left;
    list-style: none;
    margin: 0 10px 25px 0;                      /* Abstand top, right, bottom, left (Uhrzeigersinn) */ 
    background-color: #008000;
    padding: 10px;                              /* Aussenabstand, eine Angabe gilt für alle 4-Seiten */
    width: 125px;
    text-align: center;
    color: white;
    border-radius: 10px 0 10px 0;
    border-color: white;
    border-style: solid;
    font-family: "Arial Black";
    font-size: larger;
}
div#horizontal p {
    clear: left;
}

#back:link {
    color: #008000;
    background-color: #AAFFD4;
    text-decoration: none;
}