table {
      width: 100%;
      border-collapse: collapse;
      text-align: center;
      font-family: Arial, sans-serif;
    }
    th, td {
      border: 1px solid #999;
      padding: 8px;
    }
    th {
      background-color: #009fe3;
      color: white;
    }
    .grade {
      background-color: #f2f2f2;
      font-weight: bold;
    }
    .footer-row {
      text-align: left;
      font-weight: bold;
      padding: 10px;
    }