.textr
{
 font-family:Helvetica,sans-serif;
 font-size:9px; 
 color:#ffffff;
 background:#555555;
 width:49px;
 height:49px;
}
.pfeil
{
 color:#000000;
 background:#ffffff;
 background-repeat:no-repeat;
 width:49px;
 height:49px;
}
.eingabe
{
 width:20px;
 font-family:Helvetica,sans-serif;
 font-size:18px;
 text-align:center;
 text-transform:uppercase;
 border:none;
 font-weight:bold;
}
.loesung
{
 width:25px;
 font-family:Helvetica,sans-serif;
 font-size:18px;
 text-align:center;
 text-transform:uppercase;
 border:1px solid #000000;
 font-weight:bold;
}