body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
  }
  header {
    background-color: #333;
    color: white;
    text-align: center;
    padding: 20px;
  }
  
  h1 {
    margin: 0;
  }
  main {
    text-align: center;
    padding: 20px;
  }
  img {
    width:500px;
    height: 500px;
    margin-top: 20px;
  }