Learn HTML by Building a Cat Photo App - Step 51

Tell us what’s happening:
Describe your issue in detail here.

  **Your code so far**
<html>
<body>
<h1>CatPhotoApp</h1>
<main>
  <section>
    <h2>Cat Photos</h2>
    <!-- TODO: Add link to cat photos -->
    <p>Click here to view more <a target="_blank" href="https://freecatphotoapp.com">cat photos</a>.</p>
    <a href="https://freecatphotoapp.com"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
  </section>
  <section>
    <h2>Cat Lists</h2>
    <h3>Things cats love:</h3>
    <ul>
      <li>cat nip</li>
      <li>laser pointers</li>
      <li>lasagna</li>
    </ul>
    <figure>
      <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/lasagna.jpg" alt="A slice of lasagna on a plate.">
      <figcaption>Cats <em>love</em> lasagna.</figcaption>  
    </figure>
    <h3>Top 3 things cats hate:</h3>
    <ol>
      <li>flea treatment</li>
      <li>thunder</li>
      <li>other cats</li>
    </ol>
    <figure>
      <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/cats.jpg" alt="Five cats looking around a field.">
      <figcaption>Cats <strong>hate</strong> other cats.</figcaption>  
    </figure>
  </section>
  <section>
    <h2>Cat Form</h2>
    <form action="https://freecatphotoapp.com/submit-cat-photo">
      <fieldset>
        <input><fieldset><legend>Is your cat an indoor or outdoor cat?</legend>
        <label><input id="indoor" type="radio" name="indoor-outdoor" value="indoor"> Indoor</label>
        <label><input id="outdoor" type="radio" name="indoor-outdoor" value="outdoor"> Outdoor</label>
      </fieldset>
      <input type="text" name="catphotourl" placeholder="cat photo URL" required>
      <button type="submit">Submit</button></fieldset>
    </form>
  </section>
</main>
</body>
</html>
  **Your browser information:**

User Agent is: Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/103.0.0.0 Safari/537.36

Challenge: Learn HTML by Building a Cat Photo App - Step 51

Link to the challenge:

You need to add another fieldset element, as described at the step 51.