Keeping images to 100% width in pagebuilder

I am creating a one page site using page builder and Unwind and I can’t seem to keep the background images (added in rows with the image widget) from going off the edge of the screen. I need to be able to set the height of the images or resize them beforehand if they are going to stick to the width of the screen.

I need to use the image widget rather than the hero image as I need to have a background image with a gif overlayed on the top.