<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>
<main>
<p>Purr jump eat the grass rip the couch scratched sumbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched </p>
</main>
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Very simple answer: There have to be two main> elements, one at the start and one at the end.
all p> elements are between two main> elements just like the below,
main>
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 everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p