Missing padding or margin on outer edges

Hello,

If you look at the margin|padding area on the outer sides of the three columns of the three-column Enfold demo here: http://kriesi.at/themes/enfold/shortcodes/columns/

… there seems to be more padding than when I made the same three column section here below the fullscreen slider: (link attached)

I would prefer to have the same padding or margins that you have in the demo. Please advise.

Additionally, I noticed that if I put the columns under the fullscreen slider without first putting some element in between (in this case, a whitespace separator set to 1px), the layout would break. Is this a known bug with fullscreen sliders?

Thank you for your help.