change to full width the Aaron Theme through CSS

Hi everybody,
I am working on this site:
http://www.hermeneutics.space
I like it very much with the Aaron Theme but my bosses asked me to:
– have a slider instead of the fixed header
– have some other sliders in the site pages that should look full width
– remove the borders from the content in some pages
I love a lot the theme and I wouldn’t change it if there’s the way to have the option in any page to have full width – no sticky and as it is now in others…All help will be appreciated!
Thanks a lot!