CSS problem

i’ve created a local site with bitnami, (localhost), i’ve done everithing that i want, but i can’t quit a line that separate the main content and the sidebar, i’ve changed all the solid borders from the style.css to null in the archive, but the line still is in there.

i put a image of the site

image

and the style.css code, if maybe i haven´t seen the problem.

[Excessive CSS moderated and post manually re-constructed.]