Color is black y can't understand

#1

Tell us what’s happening:

Your code so far

<style>
 .red-text {
    color: red;
  }
</style>

<h2 class="red-text">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>

Your browser information:

Your Browser User Agent is: Mozilla/5.0 (Linux; Android 6.0.1; Redmi 4X Build/MMB29M) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2840.85 Mobile Safari/537.36.

Link to the challenge:
https://www.freecodecamp.org/challenges/use-a-css-class-to-style-an-element

#2

Seems to work just fine if I paste your code in and run it.

#3