.xl-type {
  font-size: 100px;
}

body {
  font-family: Arial, sans-serif;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100vh;
  margin: 0;
  background-color: #f0f0f0;
}

div {
  font-size: 24px;
  color: #333;
  margin: 10px;
}

#key_display {
  font-size: 48px;
  font-weight: bold;
  color: #007bff;
}