Topic Replies Views Activity Learn HTML by Building a Cat Photo App

I could run it on my local machine and found no discrepancy with the sample/preview. However, the code could not pass the check. Could anyone help to review/comment? Many thanks.
Below is my code:

<html>
  <body>
    <h1>CatPhotoApp</h1>
    <h2>Cat Photos</h2>
    <p>See more <a target="_blank" href="https://www.freecatphotoapp.com/">cat photos</a> in our gallery.</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>
    <h2>Cat Lists</h2>
    <h3>Things cats love:</h3>
    <ul>
      <li>cat nip</li>
      <li>laser pointers</li>
      <li>lasagna</li>    <br>
      <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/lasagna.jpg"> 
       <figcaption>Cats <em>love</em> lasagna.</figcaption>
      </ul>
  <h3>Top 3 things cats hate:</h3>
  <ol>
    <li> flea treatment</li>
    <li>thunder</li>
    <li>other cats</li><br>
    <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/cats.jpg">
     <figcaption>Cats <strong>hate</strong> other cats.</figcaption>
    </ol>
  <h2>Cat Form</h2>
 <form action="#">
    <fieldset>                        
      <legend>Is your cat an indoor or outdoor cat?</legend> 
         <input type = "radio" name = "cat" value = "on" checked = "on"> Indoor 
         <input type = "radio" name = "cat" value = "on"> Outdoor
    </fieldset>
    <fieldset>             
      <legend>What's your cat's personality?</legend> 
         <input type = "checkbox" name = "Loving" value = "on" checked = "on"> Loving  
         <input type = "checkbox" name = "Lazy" value = "on"> Lazy 
         <input type = "checkbox" name = "Energetic" value = "on"> Energetic 
</fieldset>
         <input type = "text" name = "cat photos URL" placeholder ="cat photos URL"/>
         <button type="submit"> Submit </button>
  </form>
       <p>No Copyright - <a href="https://www.freecodecamp.org/">freeCodeCamp.org</a></p>
  </body>
</html>

You need to let us know which step this is for.

oh, thank you for your feedback. I realized that I didn’t follow the step and do the coding for the whole html, so that’s why.