Why it doesn't work ? plz help

Tell us what’s happening:

Your code so far

  <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>
  <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="/submit-cat-photo">
    <input id="indoor" type="radio" name="indoor-outdoor">
    <label for="indoor">Indoor</label>
    <input id="outdoor" type="radio" name="indoor-outdoor">
    <label for="outdoor">Outdoor</label>

    <input type="text" placeholder="cat photo URL" required>
    <button type="submit">Submit</button>

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/73.0.3683.75 Safari/537.36.

Link to the challenge:

The challenge instructions say…

Add a pair of radio buttons to your form, each nested in its own label element.

You haven’t done this.

Here’s an article on nesting html elements

can you show me how to do that ?
I did exactly what the video said

so 1st thing we do is find where the code go if u read the intsruction u will find its between

 <form action="/submit-cat-photo">
your code goes here
    <input type="text" placeholder="cat photo URL">

Then we take a look at the example and what they did ask us and copy paste it a few times and change it up a bit. make sure you change the last 2 lines to outdoor since that is in our task.

  <input id="indoor" type="radio" name="indoor-outdoor">
<label for="indoor">Indoor </label>
  <input id="outdoor" type="radio" name="indoor-outdoor">Indoor 
<label for="outdoor">Outdoor </label>

I did it and still the same problem

Try a diffrend broweser reset/cookies and catch. specialy when using ie. best browser is firefox