.Navi { 
        font-family:Arial;
        font-size:80%;
        background-color: #ffffff;
        float: left;
        margin-left:5px;
        width:250px;
        line-height:19px;
      }
.Auswahl {
	        font-family:Arial;
         }
.Content {
         font-family:Arial;
         line-height:135%;
         background-color: #ffffff;
         float: left;
         margin:0px;
         width:700px;
       }
.ValidXHTML {
              text-align:right;
              width:100px;
              float:left;
            }
.Copyright {
             font-family:Arial;
             font-size:80%;
             color:#505050;
             text-align:left;
             width:400px;
             float:left;
		         margin-top:10px;
           }
.Button { 
          background-color:#a0a0a0; 
          color:#f0f0f0; 
          width:150px; 
          border:5px solid #d0d0d0;
          margin-top:5px;
          margin-bottom:5px;
        }
.GroupSudoku { 
              text-align:center;
              margin:10px;
             }
.HeadSudoku { text-align:left;
              color: #909090;
              font-family:Arial;
              font-size:130%;
              margin-bottom:15px;
              margin-left:10px;
            }
.Zahl { 
        font-family:Arial; 
        font-size:29px; 
        font-weight:normal;
				border: 0px;
        width: 45px;
        height: 30px;
        margin-top: 3px;
        text-align: center;
}
.sZahl { 
        font-family:Arial; 
        font-size:100%; 
        font-weight:normal;
				border: 0px;
        width: 25px;
        height: 25px;
        margin-top: 0px;
        text-align: center;
}
.Level {
    width:150px;
  }
.Symmetrie {
    width:150px;
  }