I'am newbee in coding challenge.. How to delete all trailing comment? Please help me

HTML-CSS
1

Tell us what’s happening:

Your code so far


<!--Perpect Challenge-->
<h1>Hello World</h1>
<!--Perfect Challenge-->
<h2>CatPhotoApp</h2>
<!--Perfect Challenge-->
<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>
i.e -->

Your browser information:

User Agent is: Mozilla/5.0 (Linux; Android 5.1; A1603 Build/LMY47I) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.91 Mobile Safari/537.36.

Link to the challenge:
https://learn.freecodecamp.org/responsive-web-design/basic-html-and-html5/uncomment-html/

2

" Comments in HTML starts with <!-- , and ends with a -->" so all code between will not show up. So, to make the code in here:

<!--
<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>
-->

visible on page you should remove the starting and ending of a commented text.