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

.container {
  background-color: #fff;
  padding: 20px;
  border-radius: 8px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
  text-align: center;
}

.number-selection {
  margin-bottom: 20px;
}

label {
  display: block;
  margin-top: 10px;
}

input[type="number"] {
  width: 50px;
  padding: 5px;
  margin-top: 5px;
}

button {
  background-color: #4CAF50;
  color: white;
  padding: 10px 20px;
  border: none;
  border-radius: 5px;
  cursor: pointer;
  margin: 5px;
}

button:hover {
  background-color: #45a049;
}

.numbers-display {
  margin-top: 20px;
  font-size: 1.2em;
}