body {
      background: grey;
      font-family: "Courier New", monospace;
      text-align: center;
      margin: 0;
      padding:2em;
    }
.banner{
    border: 5px solid black;
    background-color: white;
    }
.page{
    margin: 20px auto;
    max-width: 800px;
    border: 5px solid black;
    background-color: white;
    padding: 1em;
    }
.picture{
    border: 5px solid black;
    background-color: white;
    }
.letter{
    border: 5px solid black;
    background-color: white;
    }