body {
    padding: 1.5rem;
    font-family: Arial, sans-serif;
}

table {
    width: 100%;
    margin: 0 auto;
    table-layout: fixed;
}

td {
    width: 16.66%;
    height: 30px;
    text-align: center;
    vertical-align: middle;
    padding: 4px;
    border: 1px solid #dee2e6;
    font-size: 1rem;
}