Using SiteOrigin CSS on one page theme – overlapping sections

Hi,
I’m using the CSS plugin to edit the CSS on a one page theme. Through the first three sections of the page, everything is fine. But when you get to the fourth section, the fourth,fifth, and sixth sections overlap each other. Nevertheless, in most instances, I have been able to find a way to highlight an area and edit it. However, I have one area of type that I simple cannot get to. Using page preview, I have located the codes that I think should work in css and written the code manually, but it doesn’t work. The problem is that my background image for the page is a picture of sky and clouds (basically light blue and white) and somehow the text is white – so you see why it’s kinda’ imperative that I reach this section of the page.

Any ideas?
Thanks