.Hintergrund_Rot{border:1px solid #999999; margin-left:100px; margin-right:100px; background-color:#ffcccc; padding:10px;}
  .Hintergrund_Tuerkis{border:1px solid #999999; margin-left:100px; margin-right:100px; background-color:#99ffcc; padding:10px;}
  .Hintergrund_Gruen{border:1px solid #999999; margin-left:100px; margin-right:100px; background-color:#99ff99; padding:10px;}
  .Hintergrund_Blau{border:1px solid #999999; margin-left:100px; margin-right:100px; background-color:#ccccff; padding:10px;}
  .Hintergrund_Rot{border:1px solid #999999; margin-left:100px; margin-right:100px; background-color:#ffcccc; padding:10px;}
  .Hintergrund_Gelb{border:1px solid #999999; margin-left:100px; margin-right:100px; background-color:#ffffcc; padding:10px;}
  .Hintergrund_Grau{border:1px solid #999999; margin-left:100px; margin-right:100px; background-color:#cccccc; padding:10px;}
  .Hintergrund_Weiss{border:1px solid #999999; margin-left:100px; margin-right:100px; background-color:#ffffff; padding:10px;}