want to occupy more space ,please help !

[Shaybloom]

http://gyazo.com/eff412b82e1f99b3c5a9e84f2662eb2d

this thing

Both on right and left there is some space left vacant and I want to occupy it from both sides how should I do it?

Please help,thank you :)

[Lynne]

Impossible to tell from that little image. But, try stylevar doc_margin. If that doesn't fix it, we will need a link to the page.