How to increase the 650px max width for images in Rich Text CMS content


Currently, my CMS blog images are constricted to 650px inside rich text elements as seen below.

I want them to span the full width of the container and change the code to something like the below:

I’m trying to achieve something similar to this page layout - (Digital Design Digest for September —

Any ideas on how to do this? I’m sure it’s some custom code to add at Before but I can’t seem to get it right!

Thanks all :call_me_hand:

Here is my site Read-Only: LINK
(how to share your site Read-Only link)