table {height:100%;width:100%;table-layout:static;border-collapse:collapse}
    th, td {border-style: dotted;}

.button {
    background-color: #000000;
    color: #FFFFFF;
    padding: 10px;
    border-radius: 10px;
    -moz-border-radius: 10px;
    -webkit-border-radius: 10px;
    margin:10px;
    font-size: 48px;
};
.QR-btn 
{
  width: 600px;
  height: 100px;
}