body {
  font-family: sans-serif;
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-top: 50px;
}

h1 {
  margin-bottom: 20px;
}

button {
  padding: 10px 20px;
  font-size: 16px;
  cursor: pointer;
  border: 1px solid #ccc;
  border-radius: 5px;
}

#numbers {
  margin-top: 20px;
  font-size: 24px;
  font-weight: bold;
}