body{
    background-color :white;
    padding:0;
    margin:0;
} 
.row {
    color :black;
    height:80px;
    padding:10px;
}

.NUMBER {
    height: 50px;
    background-color: white;
    color: black;
    font-weight: bolder;
    font-size: 36pt;
    border: 5px solid black;
    padding: 5px;
    text-align:center;
}