Problem with style element

I think I wrote the code correctly since the h2 element appears blue but it gives me an error: “Your h2 element should be blue.” What did I do wrong?

Your code so far

h2 {
  color: blue;
<p>Click here to view more <a href="#">cat photos</a>.</p>

<a href="#"><img src="" alt="A cute orange cat lying on its back."></a>

  <p>Things cats love:</p>
    <li>cat nip</li>
    <li>laser pointers</li>
  <p>Top 3 things cats hate:</p>
    <li>flea treatment</li>
    <li>other cats</li>

<form action="">
  <label><input type="radio" name="indoor-outdoor" checked> Indoor</label>
  <label><input type="radio" name="indoor-outdoor"> Outdoor</label><br>
  <label><input type="checkbox" name="personality" checked> Loving</label>
  <label><input type="checkbox" name="personality"> Lazy</label>
  <label><input type="checkbox" name="personality"> Energetic</label><br>
  <input type="text" placeholder="cat photo URL" required>
  <button type="submit">Submit</button>

Challenge: Use CSS Selectors to Style Elements

Link to the challenge:

Hi and welcome to the forum!

Your code passes for me. Are you perhaps using an extension that modifies your CSS, such as a dark mode extension? Those sorts of extensions interfere with the test suite and need to be disabled while working on the CSS curriculum.

Yes i was using an extension in dark mode and didn’t think about it, now i deactivated it and it works.
Thank you very much, thanks to you I solved the problem.