body {
  background-color: black;
  color: whitesmoke;
  font-family: 'Courier New';
}

span {
  font-size: 300%;
}

#key {
  font-size: 400%;
  font-weight: bold;
}

input {
  background-color: black;
  color: white;
  border-style: none none solid none;
  font-size: 200%;
  width: 50%;
}

progress {
  font-size: 150%;
}