Je ne comprend pas pourquoi sa ne marche pas

Tell us what’s happening:
Je ne comprend pas j’ai fait les bonnes demarches mais ca ne marche pas

Your code so far

<h2 style="couleur: rouge">
  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>

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Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:57.0) Gecko/20100101 Firefox/57.0

Link to the challenge:
https://www.freecodecamp.org/challenges/change-the-color-of-text