body{
        background-repeat;
        background-position: center;
        background-color: #FFFFFF;
        background-image: url(picture/hintergrund.jpg);
        background-attachment: fixed;
        background-repeat: no-repeat;

: no-repeat;
        background-attachment: fixed;
        background-image: url(picture/hintergrund.jpg);
        background-attachment: fixed;
}

h1 {
 text-align: center;
 font-size: x-large;
 font-weight: bold;
 color: #005F00;
}

a.aktive {
 text-align: left;
 text-decoration: none;
 font-family: impact;
 font-size: 16pt;
 color: #006F00;
}

a.passiv {
 text-align: left;
 text-decoration: none;
 font-family: impact;
 font-size: 12pt;
 color: #001F00;
}

a.home {
 text-align: center;
 text-decoration: none;
 font-size: 36pt;
 color: #006F00;
}


#zentriert {
  position:absolute;
  top:50%;
  left:50%;
  width:38em;
  height:18em;
  margin-left:-19em;
  margin-top:-9em;
  border:1px solid #888;
  padding:1em;
}