Widget Width/Image Wrap

Loving this theme, but having an issue remembering (or learning new) how I was able to get images in a widget to take up the entire width of the container. I am at a very basic level of understanding css and where to edit things, but I feel I might have done so to get the one in the first image looking right. I did this a few weeks ago though, and don’t rememeber how I did it. Now that I’ve added a new widget in this same area, it’s not looking right (image 2).

Thanks for the help! Any copy/paste css code and WHERE to precisely add it would be ideal, unless there’s an easier solution I’m not aware of.

Image 1 (correct)

Image 2 (incorrect)

The page I need help with: [log in to see the link]