body {
    color: black; 
    background-color: white;
    font-size: 100%;
    font-family: Helvetica,Arial,sans-serif;
    margin: 0; 
    padding: 1em 0;
    text-align: center;  /* Zentrierung im Internet Explorer */
  }

  
  div#Seite {
    text-align: left;    /* Seiteninhalt wieder links ausrichten */
    margin: 0 auto;      /* standardkonforme horizontale Zentrierung */
    height: 1500px;
    width: 800px;
    padding: 0.5em;
    border: 2px ridge silver;
    background-color: #FFBBBB;
  }

  ul#Navigation {
    font-size: 0.91em;
    float: left; 
    width: 15em;
    margin: 0; 
    padding: 0;
    border: 1px dashed silver;
    background-color: #FFFFCC;
  }

  ul#Navigation li {
    list-style: none;
    margin: 0; 
    padding: 0.5em;
  }

  ul#Navigation a {
    display: block;
    padding: 0.2em;
    font-weight: bold;
  }

  ul#Navigation a:link {
    color: black; 
  }

  ul#Navigation a:visited {
    color: #666; 
  }

  ul#Navigation a:hover {
    color: blue; 

  }

  ul#Navigation a:active {
    color: white; 
  }

  div#Inhalt {
    margin-left: 15em;
    padding: 0 1em;
  }

  div#Inhalt h1 {
    font-size: 1.5em;
    margin: 0 0 1em;
  }

  div#Inhalt h2 {
    font-size: 1.2em;
    margin: 0 0 1em;
  }

  div#Inhalt p {
    font-size:1em;
    margin: 1em 0;
  }