body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
  }
  
  .header-img {
    width: 100%;
    height: 500px;
    object-fit: cover;
    display: block;
  } 


  header {
    background: #333;
    color: #fff;
    padding: 10px 0;
    text-align: center;
  }
  
  nav a{
    background:#333;
    color: white;
    margin: 0 15px;
    text-decoration: none;
  }
  
  main {
    padding: 20px;
  }
  
  footer {
    background: #333;
    color: white;
    text-align: center;
    padding: 10px;
  }