index.html

<!DOCTYPE html>
<html>
  <head>
    <title>Book Manager</title>
  </head>
  <body>
    <h1>Book Manager</h1>
    <form id="bookForm">
      <label for="title">Title:</label>
      <input type="text" id="title" name="title" required>
      <br>
      <label for="author">Author:</label>
      <input type="text" id="author" name="author" required>  
      <br>
      <button type="submit">Add Book</button>
    </form>
    <ul id="bookList"></ul>
    <script src="script.js"></script>
  </body>
</html>