popup.html

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>TubeNotes</title>
  <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.2.0-beta1/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-0evHe/X+R7YkIZDRvuzKMRqM+OrBnVFBL6DOitfPri4tjfHxaWutUpFmBp4vmVor" crossorigin="anonymous">
  <link href="popup.css" rel="stylesheet" type="text/css" />
  <script type="module" src="popup.js"></script>
</head>
<body>
  <div id="entire-popup">
    <div class="container">
      <div class="not-button-area">
        <div class="bookmarks" id="bookmarks"></div>
      </div>
    </div>
    <div class="button-container">
      <button type="button" class="btn btn-primary" id="note-button">Add Note</button>
    </div>
  </div>
</body>
</html>