font-family: Verdana;
}body {
  background-color: black;
  color: #00FF00;
  font-family: 'Courier New', monospace;
  font-size: 16px;
  margin: 0;
  padding: 20px;
}
input, button {
  background: black;
  color: #00FF00;
  border: 1px solid #00FF00;
  font-family: inherit;
}
pre {
  white-space: pre-wrap;
  margin-top: 10px;
}