body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  background: #f4f4f4;
  color: #333;
}
h1 {
  text-align: center;
  margin-top: 50px;
}
img {
  display: block;
  margin: 20px auto;
  max-width: 200px;
}