@media (max-width: 768px) {
    h2 {
      font-size: 20px;
    }
    h3 {
      font-size: 18px;
    }
    table {
      width: 100%;
    }
    td, th {
      padding: 6px;
    }
    .flex {
      flex-direction: column;
      align-items: center;
    }
    .flex > div {
      width: 100%;
      padding-right: 0;
      margin-bottom: 20px;
    }
  }