CSS Code block image full bleed

Site URL: https://clownfish-coral-haax.squarespace.com/

Hi everyone,

I am trying to make a simple hover over feature that changes one image to another. 

I managed to code that much, but as you will see on the site there, it is set in with awkward margins...

Im trying to get it to be full bleed..... any help would be greatly appreciated!

See my CSS code attached---

Thanks,

Anthony

Hi Anthony, you need to give us your site password.