body { background-color: #000022;
       font-family: Tahoma, Helvetica, Verdana, Sans-Serif;       
}
table { margin-left: auto;
        margin-right: auto;
        width: 50%;
        empty-cells: hide;
}
input:focus { background-color: #FFFFBB;
              border-style: solid;
              border-color:  #A7A6AA;
              border-width: 2px;
}
.richtig { background-color: #6F6;
           border-style: solid;
           border-color:  #A7A6AA;
           border-width: 2px;
} 
.falsch { background-color: #F33;
          border-style: solid;
          border-color: #A7A6AA;
          border-width: 2px;
}              
.heading { font-weight: bold;
           font-size: 1.2em;
           text-align: center;
           padding: 4px;
           background-color: gray;
 }
.erg { background-color: #B0C4DE;  
       text-align: center;
}
.erg input { font-size: 1em;
             text-align: center;
             background-color: #6F6;
             border-style: solid;
             border-width: 2px;
             border-color: #000;
}
#gesamt_button { margin: 10px;
                 width: 50%;
                 color: #F00;
}
#gesamterg { width: 50%;
             height: 50px;
             font-size: xx-large;
 	     margin-right: auto;
	     margin-left: auto;
}
.heading2 { text-decoration: underline;
             font-size: 1.2em;
 }
 .empty { empty-cells: show;
 }
.beschriftung { text-align: center;
 }
input { margin: 10px;
 }               
td { border: solid 1px black;
     background: #dfdfdf;
     text-align: center;
}
img { display:none;
}