Cuéntanos qué está pasando:
No se por que demonios no me deja pasar, en otras ocasiones incluso me dice que elemento input no debe llevar etiqueta de cierre cuando claramente no la he usado
Tu código hasta el momento
<html>
<body>
<main>
<h1>CatPhotoApp</h1>
<section>
<h2>Cat Photos</h2>
<p>Everyone loves <a href="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg">cute cats</a> online!</p>
<p>See more <a target="_blank" href="https://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>
</section>
<section>
<h2>Cat Lists</h2>
<h3>Things cats love:</h3>
<ul>
<li>catnip</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>
<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>
<fieldset>
<!-- User Editable Region -->
<legend>What's your cat's personality?</legend>
<input type="checkbox"> <label> Loving </label>
<!-- User Editable Region -->
</fieldset>
<input type="text" name="catphotourl" placeholder="cat photo URL" required>
<button type="submit">Submit</button>
</form>
</section>
</main>
</body>
</html>
Información de tu navegador:
El agente de usuario es: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/138.0.0.0 Safari/537.36
Información del Desafío:
Aprende HTML construyendo una aplicación de fotos de gatos - Paso 56