    <style>
        body {
            text-align: center; /* Center align everything */
        }
        .outer-table {
            width: 80%; /* Width of the outer table */
            margin: 20px auto; /* Center the table horizontally with some top margin */
            border-collapse: collapse; /* Collapse borders between cells */
            padding: 0; /* Remove padding */
        }
        .inner-table {
            width: calc(100% - 40px); /* Width of the inner table */
            margin: 0 auto; /* Center the inner table */
            background-color: #ffffff; /* Same background color as outer table */
            border-collapse: collapse; /* Collapse borders between cells */
            padding: 0; /* Remove padding */
        }
        .inner-table td {
            padding: 10px; /* Padding inside each cell */
            border: 1px solid #000000; /* Black border around each cell */
        }
        h1 {
            color: white; /* White text color */
            margin-top: 20px; /* Top margin for the heading */
        }
    </style> 