Adding backgrounds - is code required?

Site URL: http://margaretrizzuto.com

I want to add backgrounds to a few areas on my site - right now, Im just using images (text and background) but its not optimal because it does bleed through to the edges.  Anyone know of a way to make that happen?

The specific areas are: 

What If section
Let's Work Together 

Thanks so much!

Are you wanting a background image for those sections or just a different background color and keep your page border?

Ideally, i'd just like a background image then I'll add text via a text block. Thanks for the reply!

This tutorial may help you, since you are using a member of the Brine family and index page. 

https://www.samchowdesigns.com/blog/how-to-change-squarespace-section-background-color

@derricksrandomviews Thanks so much, I'll take a look!