Help me please how to write correct syntax

Tell us what’s happening:

Your code so far

Hello World-->

hello world

Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.106 Safari/537.36.

Link to the challenge:

You are missing a lot. Why did you remove the h1, p tags they gave you? Reset the code, and only add comments around your h1 and p tags.

An example would be
Remember only around the h1 p tags NOT the h2

<!-- Hello world -->

thanks for your help