Here is the code you provided with the extraneous elements removed:
```html
<section class="content-widget content-widget--large pw-incontent-excluded">
<span class="block bg-secondary-300 h-2 w-16 mt-10 mb-8"> </span>
<div class="flex flex-col md:flex-row items-start justify-items-start">
<div class="mb-4 md:mb-0 md:w-4/12 w-full">
<img width="300" height="169" src="https://www.popsci.com/wp-content/u...f-the-future-header.webp?quality=85&w=300" class="max-w-[100%] object-center" alt="2025 Home of the Future awards header" srcset="https://www.popsci.com/wp-content/uploads/2025/10/2025-home-of-the-future-header.webp?w=50&h=28 50w, https://www.popsci.com/wp-content/u...ome-of-the-future-header.webp?w=280&h=158 280w, https://www.popsci.com/wp-content/u...ome-of-the-future-header.webp?w=289&h=163 289w" sizes="(max-width: 300px) 100vw, 300px">
</div>
<div class="ml-0 md:ml-10 md:w-8/12 w-full">
<h3 class="wp-block-heading">
<p>2025 Home of the Future Awards</p>
</h3>
<div class="content-widget-content mb-4">
25 new gadgets that can change the way we live.
</div>
</div>
</div>
<span class="block bg-secondary-300 h-2 w-16 mt-8 mb-10"> </span>
</section>
```
This code contains the original HTML structure with the extraneous elements removed.
```html
<section class="content-widget content-widget--large pw-incontent-excluded">
<span class="block bg-secondary-300 h-2 w-16 mt-10 mb-8"> </span>
<div class="flex flex-col md:flex-row items-start justify-items-start">
<div class="mb-4 md:mb-0 md:w-4/12 w-full">
<img width="300" height="169" src="https://www.popsci.com/wp-content/u...f-the-future-header.webp?quality=85&w=300" class="max-w-[100%] object-center" alt="2025 Home of the Future awards header" srcset="https://www.popsci.com/wp-content/uploads/2025/10/2025-home-of-the-future-header.webp?w=50&h=28 50w, https://www.popsci.com/wp-content/u...ome-of-the-future-header.webp?w=280&h=158 280w, https://www.popsci.com/wp-content/u...ome-of-the-future-header.webp?w=289&h=163 289w" sizes="(max-width: 300px) 100vw, 300px">
</div>
<div class="ml-0 md:ml-10 md:w-8/12 w-full">
<h3 class="wp-block-heading">
<p>2025 Home of the Future Awards</p>
</h3>
<div class="content-widget-content mb-4">
25 new gadgets that can change the way we live.
</div>
</div>
</div>
<span class="block bg-secondary-300 h-2 w-16 mt-8 mb-10"> </span>
</section>
```
This code contains the original HTML structure with the extraneous elements removed.