Disable Cards Lay-out with SiteOrigin Page Builder?

So I’m working on the website of friends of mine and we are happy with the Travelify theme. We want an advanced lay-out and we are using the Page Builder plugin by SiteOrigin. The theme and the plugin are working very good, but when I visit my page, there are those boxes with a border.

The WIP site is: http://www.kringloopoudennieuw.nl/

Is there a way (with a child theme) to disable this cards, and have the boxes appear like on the Dazzling or Sprakling themes?

Thanks a lot!

We remove the footer credits, but are going to give credit to Colorlib and Wordpress on the Disclaimer page

I think that you have already resolved these issues as I don’t see any widgets or other boxed elements except main content area.

Could you please clarify and let me know if you need any further assistance with this.