body {
  font-family: Arial;
  text-align: center;
  background: #f5f5f5;
}

h1 {
  color: #4a00e0;
}

.btn {
  display: inline-block;
  padding: 15px 30px;
  background: #4a00e0;
  color: white;
  border-radius: 10px;
  text-decoration: none;
}

.card {
  background: white;
  padding: 20px;
  margin: 20px;
  border-radius: 15px;
}