Html course saying I need main element and children?

It says I need a main element and children does anybody know what that means?

Your code so far


<h1> MY website</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>

<p> " Purr jump eat the grass rip the couch scratched sunbathe, shed evreywhere rip the couch sleep in the sink fluffy fur catnip scratched"</p>

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.62 Safari/537.36.

Link to the challenge:

Wrap the paragraphs with an opening and closing main tag.