Zerif Lite Page Builder

I have a problem with the page builder. When fully stretched it seems somewhat dislocated. I can see the left margin text, but it is not fully visible. At the same time there is a space in the right side. I can logically understand that if i moved it in about 25px I could see the text and it would fully stretch, but I cant figure out how to correct this. Picture added.

https://www.dropbox.com/s/wf4nhrpwc3aeh44/Sk%C3%A6rmbillede%202016-02-17%20kl.%2013.02.04.png?dl=0

Thanks in advance!

Best regards

Mads