Please show me what’s wrong with the code?

Tell us what’s happening:
Describe your issue in detail here.

  **Your code so far**

<html>
<body>
  <h1>CatPhotoApp</h1>
  <main>. <h2>Cat Photos</h2>. <!-- TODO: Add link to cat photos -->  <p>Click here to view more cat photos.</p>
  </main>
</body>
</html>
  **Your browser information:**

User Agent is: Mozilla/5.0 (iPhone; CPU iPhone OS 15_5 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) GSA/213.0.449417121 Mobile/15E148 Safari/604.1

Challenge: Step 6

Link to the challenge:

the lines after the main should start after 6 space (h2,comment and p)