body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
  }
  
  header {
    background-color: #333;
    color: white;
    padding: 10px 0;
    text-align: center;
  }
  
  header nav ul {
    list-style: none;
    padding: 0;
  }
  
  header nav ul li {
    display: inline;
    margin: 0 15px;
  }
  
  header nav ul li a {
    color: white;
    text-decoration: none;
  }
  
  footer {
    background-color: #333;
    color: white;
    padding: 20px 0;
    text-align: center;
  }
  
  footer .footer-links ul {
    list-style: none;
    padding: 0;
  }
  
  footer .footer-links ul li {
    display: inline;
    margin: 0 10px;
  }
  
  footer .footer-links ul li a {
    color: white;
    text-decoration: none;
  }
  
  section {
    padding: 20px;
    text-align: center;
  }
  
  form {
    width: 50%;
    margin: 0 auto;
  }
  
  form input, form textarea {
    width: 100%;
    padding: 10px;
    margin: 10px 0;
  }
  
  button {
    padding: 10px 20px;
    background-color: #333;
    color: white;
    border: none;
    cursor: pointer;
  }
  
  button:hover {
    background-color: #555;
  }

  
  /* mobile friendly below code */

  @media (max-width: 768px) {
    header nav ul {
      text-align: center;
    }
  
    form {
      width: 80%;
    }
  
    footer .footer-links ul li {
      display: block;
      margin: 10px 0;
    }
  }