body {
      font-family: Arial, sans-serif;
      line-height: 1.6;
      max-width: 700px;
      margin: 40px auto;
      padding: 0 20px;
      color: #333;
    }
    h1 {
      font-weight: 600;
      margin-bottom: 0;
    }

    .subtitle {
      margin-top: -0.1em;
      margin-bottom: 0.4em;
      font-weight: normal;
      font-size: 1.1em; /* adjust up/down to taste */
    }

    h3 {
      margin-top: 0;
    }

    .cover {
      display: block;            /* allows margin auto to centre the image */
      max-width: 25vw;           /* 25% of the viewport width */
      height: auto;              /* maintain aspect ratio */
      margin: 20px auto;         /* centres the image */
      border-radius: 6px;
    }

    .footer {
      margin-top: 40px;
      font-size: 0.9em;
      color: #666;
      border-top: 1px solid #ddd;
      padding-top: 15px;
    }

    .contact-details {
      margin-bottom: 3em;
    }