body {
  font-family: Arial, sans-serif;
}

.container {
  margin: 0 auto;
  text-align: center;
}

h1 {
  font-size: 3rem;
}

.number-display {
  margin: 2rem 0;
  font-size: 8rem;
  font-weight: bold;
}

#generate-btn {
  padding: 1rem;
  font-size: 2rem;
  background-color: #007bff;
  color: #fff;
  border: none;
  border-radius: 5px;
  cursor: pointer;
}

#generate-btn:hover {
  background-color: #0062cc;
}