<style>
  table.formal-table {
    border-collapse: collapse;
    width: 100%;
    font-family: Arial, Helvetica, sans-serif;
    font-size: 14px;
  }

  table.formal-table th,
  table.formal-table td {
    border: 1px solid #666;
    padding: 8px;
  }

  table.formal-table thead th {
    background-color: #d9d9d9;
    text-align: left;
  }

  table.formal-table td.numeric,
  table.formal-table th.numeric {
    text-align: right;
  }

  table.formal-table tbody tr:nth-child(odd) {
    background-color: #f2f2f2;
  }

  table.formal-table tbody tr.summary-row {
    background-color: #e6e6e6;
    font-weight: bold;
  }
</style>
