table{
    border-collapse: collapse;
    margin: 50px auto;
    border: 5px #999;
    font-family: Arial;
}
td{
    width: 3em;
    height: 3em;
    border: 1px solid #555;
    text-align: center;
    padding: 0;
    margin: 0;
}
.red{
    font-weight: bold;
    color: red;
    font-style: italic;
    background-color: pink;
}