The code and then the URL to the challenge.
<style>
h2 {color: blue;}
<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>
</style>
https://www.freecodecamp.org/challenges/use-css-selectors-to-style-elements