Where is the mistake؟
<h2>CatPhotoApp</h2>
<header>
<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>
</header>