To display your code in here you need to wrap it in triple back ticks. On a line by itself type three back ticks. Then on the first line below the three back ticks paste in your code. Then below your code on a new line type three more back ticks. The back tick on my keyboard is in the upper left just above the Tab key and below the Esc key.
<html>
<body>
<h1>CatPhotoApp</h1>
<main>
<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>
<img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."a target="_blank" href="https://freecatphotoapp.com"</a>
Look closely at how you turned the words “cat photos” into a link. You wrapped them in an anchor element. You did this by putting an opening a tag before them and a closing a tag after them. Did you do the same thing to the <img> element to make it a link?
Have you tried putting the opening a tag before the <img> tag and the closing a tag after the <img> tag? If so, please post that HTML in here so we can see for ourselves.
<html>
<body>
<h1>CatPhotoApp</h1>
<main>
<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 target="_blank" 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>
<html>
<body>
<h1>CatPhotoApp</h1>
<main>
<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> target="_blank" 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>
I’ve edited your post for readability. When you enter a code block into a forum post, please precede it with a separate line of three backticks and follow it with a separate line of three backticks to make it easier to read.
You can also use the “preformatted text” tool in the editor (</>) to add backticks around text.