body {
  background-color: #111;
  color: #eee;
  font-family: 'Courier New', Courier, monospace;
  padding: 20px;
}

#cli {
  max-width: 800px;
  margin: 0 auto;
}

#cli-output {
  white-space: pre-wrap;
  padding-bottom: 10px;
  border-left: 4px solid #00ff00;
  margin-bottom: 10px;
}

#cli-input {
  background-color: #111;
  color: #00ff00;
  border: none;
  border-bottom: 1px solid #444;
  font-family: inherit;
  font-size: 1rem;
  width: 100%;
  outline: none;
}