body {
  margin: 0;
  padding: 0;
  font-family: Arial, sans-serif;
  background: #f4f4f4;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}

.container {
  text-align: center;
  background: white;
  padding: 40px;
  box-shadow: 0 0 10px rgba(0,0,0,0.1);
  border-radius: 8px;
}

h1 {
  color: #333;
}