Change footer widget width?

https://www.sanefcs.com

Is there a way to change the widget so that the items are not so compact at the bottom of the page? I’d prefer that the widget and items take up 100% width of the page (subdivided by the number of products that I have it set to show, obviously).

I found this code that allegedly changes the footer width, but I can’t tell if it changed the footer widget width or not (i.e. is WP using 100% but Zen4WP isn’t).

*Change width of the footer widgets*/
@media (min-width: 768px) {
.fl-page-footer-widgets .col-sm-3:first-child {
width: 40%;
}
}