body {
    font-size: 1em;
    background-color: #FFFFFF;
    color: #000000;
    font-family:Arial, Helvetica, sans-serif;
    padding: 0px;
    margin: 5px;
}

div#Seite {
    margin: 0 auto;
    margin-top: 100px;
    width: 760px;
    text-align: center;
    padding: 0.5em;
    border: 2px dashed silver;
}