* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    background-color: #f4f4f4;
    color: #333;
  }
  
  a {
    text-decoration: none;
    color: #1a73e8;
  }
  
  a:hover {
    text-decoration: underline;
  }
  
  h1, h2, h3 {
    color: #444;
  }
  
  header {
    background-color: #333;
    color: #fff;
    padding: 20px;
    text-align: center;
  }
  
  nav {
    background-color: #444;
    text-align: center;
    padding: 10px;
  }
  
  nav a {
    margin: 0 15px;
    color: #fff;
  }
  
  nav a:hover {
    color: #1a73e8;
  }
  
  main {
    padding: 20px;
  }
  
  footer {
    background-color: #333;
    color: #fff;
    text-align: center;
    padding: 10px;
  }
  
  button {
    background-color: #1a73e8;
    color: white;
    padding: 10px 20px;
    border: none;
    cursor: pointer;
  }
  
  button:hover {
    background-color: #0056b3;
  }
  
  ul {
    list-style-type: none;
  }
  
  li {
    margin: 10px 0;
  }
  
  a:focus, button:focus {
    outline: 3px solid #ffbf47;
  }
  
  img {
    max-width: 100%;
    height: auto;
  }
  
  input[type="text"], input[type="email"], input[type="password"] {
    padding: 10px;
    width: 100%;
    border: 1px solid #ccc;
    margin-bottom: 10px;
  }
  
  @media (max-width: 768px) {
    header {
      padding: 10px;
    }
  
    nav {
      display: block;
    }
  
    nav a {
      display: block;
      margin: 10px 0;
    }
  
    main {
      padding: 10px;
    }
  }
  
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    background-color: #f4f4f4;
    color: #333;
  }
  
  a {
    text-decoration: none;
    color: #1a73e8;
  }
  
  a:hover {
    text-decoration: underline;
  }
  
  h1, h2, h3 {
    color: #444;
  }
  
  header {
    background-color: #333;
    color: #fff;
    padding: 20px;
    text-align: center;
  }
  
  nav {
    background-color: #444;
    text-align: center;
    padding: 10px;
  }
  
  nav a {
    margin: 0 15px;
    color: #fff;
  }
  
  nav a:hover {
    color: #1a73e8;
  }
  
  main {
    padding: 20px;
  }
  
  footer {
    background-color: #333;
    color: #fff;
    text-align: center;
    padding: 10px;
  }
  
  button {
    background-color: #1a73e8;
    color: white;
    padding: 10px 20px;
    border: none;
    cursor: pointer;
  }
  
  button:hover {
    background-color: #0056b3;
  }
  
  ul {
    list-style-type: none;
  }
  
  li {
    margin: 10px 0;
  }
  

  a:focus, button:focus {
    outline: 3px solid #ffbf47;
  }
  
  img {
    max-width: 100%;
    height: auto;
  }
  
  input[type="text"], input[type="email"], input[type="password"] {
    padding: 10px;
    width: 100%;
    border: 1px solid #ccc;
    margin-bottom: 10px;
  }
  
  @media (max-width: 768px) {
    header {
      padding: 10px;
    }
  
    nav {
      display: block;
    }
  
    nav a {
      display: block;
      margin: 10px 0;
    }
  
    main {
      padding: 10px;
    }
  }