html, body {
  margin: 0;
  padding: 0;
  height: 100%;
}

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

.container {
  background: white;
  padding: 40px;
  border-radius: 12px;
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
}