body {
  margin: 0;
  padding: 0;
  text-align: center;
}

#input, #output {
  display: inline-block;
  max-width: 400px;
  width: 80vw;
}

#input {
  font-size: 1.5rem;
  margin-top: 5vh;
  padding: 1rem;
}

#output {
  font-family: monospace;
  text-align: left;
  white-space: pre-wrap;
}