The problem with commenting the words

Tell us what’s happening: I can’t comment h1, h2, p. So it will be good if you provide detail explanation.
Thanks in advance

Your code so far

<h1>Hello World</h1>


<p>Hello Paragraph</p>

Your browser information:

Your Browser User Agent is: Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.2883.87 UBrowser/ Safari/537.36.

Link to the challenge:

The code is already commented. The task is to uncomment the code (i.e., remove the comment parts)

a I got it thanks a lot