add extra empty space ABOVE header?

Hi there,

I’d like to add some extra empty space above my header, or just move all page content some extra pixels lower. I’ve already changed a lot in style.css, but it didn’t do the trick (completely): If I change the line-height of h1 in style.css, I do get extra space, but that’s ABOVE AND BENEATH the header title, but i only want to have extra space ABOVE it.

h1 {
font-size: 36px;
color: #fff;
line-height: 150px;..

Any suggestions?
I’m using Sharpfolio

THX in advance!