Quill 2.0 con bubble

<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width">
  <title>JS Bin</title>
  <!-- https://quilljs.com/docs/formats -->
  <link href="https://cdn.jsdelivr.net/npm/quill@2.0.3/dist/quill.bubble.css" rel="stylesheet" />
  <script src="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.9.0/highlight.min.js"></script>
  <script src="https://cdn.jsdelivr.net/npm/quill@2.0.3/dist/quill.js"></script>
  <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.9.0/styles/atom-one-dark.min.css"
/>
  <style>
    #editor {margin-top:4em;}
  </style>
</head>
<body>

  <div id="editor"></div>

  <script>
    const toolbarOptions = ['bold', 'italic', 'strike','code-block'];
    const quill = new Quill('#editor', {
      theme: 'bubble',
      placeholder: 'Compose an epic...',
      modules: {
        toolbar: toolbarOptions,
        syntax: true,
      },
    });
  </script>

</body>
</html>