Stuck in input type required field

Tell us what’s happening:
hello,
I m stuck at using the required field please can u check my code where I m wrong.

Your code so far


<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>

<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>
<form action="https://freecatphotoapp.com/submit-cat-photo">
  <input type="text" placeholder="cat photo URL">
  
  <input type="text" id="username" Name="Username" required>
  <button type="submit">Submit</button>
  
</form>
</main>

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.88 Safari/537.36.

Challenge: Use HTML5 to Require a Field

Link to the challenge:

you have changed more code than you needed, I suggest you reset the code and try again

Thank u dear ya I got my mistake:grinning