Attitude theme -featured image above pages content

Hi
I’m using Attitude theme and want to do a small change to the pages design.

Can anyone help me figure out how I can get the featured image to display above a pages content, like in this site: https://landlogmenn.is/thjonusta/althjodavidskipti/

I’m redesigning and the code used in the Attitude template is to complicated for me. I’m working on this here: https://skritin.is/ll/is/thjonusta/althjodavidskipti/

Thanks in advance.
K