body {
  margin: 0;
  padding: 0;
}

#main, #output {
  width: 800px;
  height: 300px;
  margin: 0 auto;
}

h1 {
    text-align: center;
}

#output {
  font-family: "courier new";
  font-size: 30px;
  padding: 100px 0 0 400px;
}