body {
  font-family: sans-serif;
  background: #121212;
  color: white;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  margin: 0;
}
.container {
  text-align: center;
}
button {
  background-color: #34c759;
  color: white;
  padding: 12px 24px;
  font-size: 18px;
  border: none;
  border-radius: 8px;
  margin-top: 20px;
}