I’m using one of the CTA but the backdrop won’t extend edge-to-edge.
the link is; lucilane.art
did you place the CTA in a container? If so, get it out and it will go edge to edge I think.
I tried both inside and out of a container and no difference
You’re not using the Foundry theme. This theme is required when using Foundry as it is a blank theme for designing your page from the ground up, which doesn’t impart extra spacing around the main body of the page. (Additionally the Foundry theme contains some of the code needed for Foundry’s individual tools, too).