If you're using a "normal" layout that includes your theme's styling, it's likely that you see some space between your header and where your Shogun content starts.
This space is actually a part of your header, and sometimes it includes your page title.
To remove the space you can actually just do this:
1. Click the first element on the page (i.e. a Section or Image)
2. Look for the Margins setting (righthand side)
3. Click the little "Lock" icon.
4. Set a negative margin on the Top (i.e. -75px)
Let me know if you have any questions.