styles.css

    body {
      padding: 2rem;
              font-family: -apple-system, BlinkMacSystemFont,
        "Arial", sans-serif;
    }
    .card {
      max-width: 520px;
      margin: 0 auto;
      padding: 12px;
      border: 1px solid lightgray;
      border-radius: 16px;
    }
    p {
      font-size: 15px;
      margin-bottom: 0;
    }