td{
    border: 1px solid black;
    background-color: red;
    font-family: arial;
    font-size: 5em;
    width: 100px;
}

table{
    margin: auto;
}

.color{
    background-color: green;
    color: white;
}

.colorw{
    background-color: white;
    color: red;
}