Make row Full Width (No Sidebar) – Custom CSS

Hi,

For my site, I am wanting to have top part of my page with sidebar and bottom part no sidebar (Full width).

Using this plugin, can i make certain “rows” full width using Custom CSS Styles option in Widget Styles on each section to create the page style i want?

Website: http://www.cockatours.com/capeyorktours-4wdadventure/trip-1-may29-june12-2017-discover-cooktown/
If you have a look at my site, the sidebar is dragged all the way down the page to the footer, I want this to stop at the first Table on the page – where from there should be full width.

Thanks!