html {
    scroll-behavior: smooth;
    font-family: Helvetica, Arial, sans-serif;
}

body {
    margin: 0 auto;
    background-color: #fff;
    font-family: Arial, sans-serif;
    font-size: 16px;
  }
  
  header {
    background-color: #333;
    color: #fff;
    padding: 20px;
  }
  
  nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
  }
  
  nav li {
    display: inline-block;
    margin-right: 20px;
  }
  
  nav a {
    color: #ffffff;
    text-decoration: none;
  }
  
  .hero {
    background-image: url('https://images.unsplash.com/photo-1568696331348-b166dcf47057?ixlib=rb-4.0.3&ixid=MnwxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8&auto=format&fit=crop&w=1770&q=80');
    background-size: cover;
    color: #fff;
    text-align: center;
    padding: 100px 0;
  }
  
  .hero h1 {
    font-size: 48px;
    margin-bottom: 20px;
  }
  
  .hero p {
    font-size: 24px;
    margin-bottom: 20px;
  }
  
  form {
    display: inline-block;
  }
  
  form input {
    padding: 10px;
    margin-right: 10px;
    border-radius: 5px;
    border: none;
    font-size: 16px;
  }
  
  form button {
    padding: 10px;
    border-radius: 5px;
    border: none;
    background-color: #333;
    color: #fff;
    font-size: 16px;
    cursor: pointer;
  }
  
  .about {
    background-color: #f2f2f2;
    padding: 50px;
    text-align: center;
  }
  
  .about h2 {
    font-size: 36px;
    margin-bottom: 20px;
  }
  
  .about p {
    font-size: 18px;
    margin-bottom: 20px;
  }
  
  footer {
    background-color: #333;
    color: #fff;
    padding: 20px;
    text-align: center;
  }