body {
  margin: 0;
  padding: 0;
  font-family: Arial, sans-serif;
  background-color: #000;
  color: #fff;
  text-align: center;
}
.container {
  max-width: 480px;
  margin: 0 auto;
  padding: 40px 20px;
}
h1, h2 {
  margin-bottom: 20px;
}
.btn {
  display: inline-block;
  margin-top: 20px;
  padding: 15px 30px;
  background-color: #e60073;
  color: #fff;
  text-decoration: none;
  border-radius: 6px;
  font-size: 18px;
}