Tell us what’s happening:
Describe your issue in detail here.
**Your code so far**
<html>
<body>
<catphotoapp>HelloWorld</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/15.4 Safari/605.1.15
Challenge: Learn HTML by Building a Cat Photo App - Step 1
Link to the challenge: