Margins and/or Padding

I’d like to make the margins bigger within my site origins editor. This actually may not be what I need to do, but I’d like to have the words more spread out than they are now. Right now they are in a small 3×5 ish square. If you would like to see what I mean you can go to my site at www.jimturnpaughmagic.com and look at the front page. The section I am talking about is under close up/walk around magic and formal show. I’d like each of those sections to take up half of the row that it is in. I hope that makes since. I’ve tried to change the container width within my customization setting but that makes throws the rest of my page of so you’d have to scroll left and right to see it all. I appreciate any help you can give me.