I can't put "!" in the comment

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

Your code so far


<!--
<h1>Hello World</h1>-->

<h2>CatPhotoApp</h2>
<!--<p>Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>
-->

Your browser information:

User Agent is: Mozilla/5.0 (Linux; Android 10; Infinix X692) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.99 Mobile Safari/537.36

Challenge: Comment out HTML

Link to the challenge:

Can you rephrase your question, please? Your code is passing for me.

Your solution is a working one so I add [spoiler][/spoiler] tags - we like to hide working solutions to the curriculum.