body {
    padding-top: 50px;
}
table {
    border-collapse: collapse;
    margin: auto;
    border: 2px solid black;
    }
    
    td {
    width: 100px;
    height: 100px;
    text-align: center;
    font-size: 70px;
    font-family: "Arial Unicode MS", sans-serif;
    /* position: relative; */
    }
    
    tr:nth-child(even) td:nth-child(odd),
    tr:nth-child(odd) td:nth-child(even) {
    background-color: rgb(162, 162, 162);
    }