Firefox Browser on CSS exercises

HTML-CSS
1

This is a firefox browser issue, but I just thought i’d point this out if anyone encounters the same issue. What I noticed was some browser extensions/plugins can affect the completion of an exercise.

The following is from “Basic CSS: Use CSS Selectors to Style Elements”.

<style>
  h2 { 
    color: blue;
  }
</style>

<h2>CatPhotoApp</h2>
<main>
  <p>Click here to view more <a href="#">cat photos</a>.</p>

  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>

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

  <form action="https://freecatphotoapp.com/submit-cat-photo">
    <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>
  </form>
</main>

The very code above works and solves the exercise, however it is not recognised as accepted when I used Firefox with a dark mode extension I had installed, but after disabling it, it worked. I observed this will be the case for exercises that require you to change colors.

2 Likes
2

This is a known issue for any browser. Extensions that change the colors in your browser work by changing your CSS. This necessarily interferes with tests that check your CSS.

3 Likes
3

Thanks for informing, this was totally new to me.

4

Oooooo good to know, that makes a lot of sense. Is there any extension or add-on out there that can create that effect in any other way than using CSS (just out of curiosity)?

5

you can switch the native dark mode in the settings of your account, that one will
not interfere with the tests

2 Likes
6

Thanks for informing, this was totally new to me.