Use a CSS Chlass to Style an Element

HTML-CSS
1

Tell us what’s happening:

Your code so far

<style>
 h2
  red-text {
    color: red;
  }
</style>

<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>

Your browser information:

Your Browser User Agent is: Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/66.0.3359.181 Safari/537.36.

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

2 
<style>
 h2.red-text {
    color: red;
 }
</style>

You access the class name of an element with a dot.

Then, you have to set the class name for the element itself:

<h2 class="red-text">...