Hello, I’m currently doing the “Mozilla Splash page” assessment. I can get everything to work except for the part with the responsive images. Here’s a snippet of my HTML doc:

>     <a href="https://www.mozilla.org/en-US/firefox/new/">  
>           <img srcset="images/dino120.png 120w,
>                        images/dino400.png 400w"
>                sizes="(max-width: 480px) 120px,
>                       (min-width: 481px) 400px"
>                src="images/dino400.png" alt="a red dinosaur head">
>         </a>

Is there anything wrong with my code? I can’t see any differences whenever I resize my browser.