index.html

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">
    <title>Note Taking App</title>
  </head>
  <body>
    <div class="container">
      <h1>Note Taking App</h1>
      <form id="add-note-form">
        <div class="form-group">
          <label for="note-title">Title:</label>
          <input type="text" class="form-control" id="note-title" placeholder="Enter note title">
        </div>
        <div class="form-group">
          <label for="note-body">Body:</label>
          <textarea class="form-control" id="note-body" rows="3" placeholder="Enter note body"></textarea>
        </div>
        <button type="submit" class="btn btn-primary">Add Note</button>
      </form>
      <ul id="note-list"></ul>
    </div>
    <script src="./app.js"></script>
  </body>
</html>