Learn HTML by Building a Cat Photo App - Step 1

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

Your code so far

<html>
  <body>

<!-- User Editable Region -->

    <catphotoapp>Hello World</catphotoapp>

<!-- User Editable Region -->

  </body>
</html>

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/115.0.0.0 Safari/537.36

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

Link to the challenge:

I think you missunderstood the task.
You should change the text between the <h1></h1> not the tag itself.