Learn HTML by Building a Cat Photo App - Step 1

Tell us what’s happening:
Describe your issue in detail here. I Can’t make a Catphotoapp

   **Your code so far**
<html>
 <body>
<html>
 <body>     
 <HTML>  </CatPhotoApp>
 </body>
</html>
   **Your browser information:**

User Agent is: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/14.1.2 Safari/605.1.15

Challenge: Learn HTML by Building a Cat Photo App - Step 1

Link to the challenge: