body {
  margin: 0;
  font-family: Arial, sans-serif;
  background-color: #f2f2f2;
  color: #333;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  text-align: center;
}

.container {
  max-width: 500px;
  padding: 20px;
  background: white;
  box-shadow: 0 0 15px rgba(0,0,0,0.1);
  border-radius: 10px;
}