body {
  font-family: Arial, sans-serif;
  background-color: #f0f0f0;
  margin: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 80vh;
}

h1 {
  text-align: center;
  color: #333;
  margin-top: 20px;
}