Creating New Template

I am trying to create a new template (for a static homepage) with the Freshy theme (found here: https://www.jide.fr/english/downloads/template-freshy-wordpress/)

I removed the sidebar and would like the content to stretch into the right area where the sidebar was. Problem is that when aligned right, content still only goes as far as it did when the sidebar was there.

I found that it was likely because it had <div id=”content”> around the page and in the css the “content” id is set to only 510px wide. I changed it to 740px wide and refreshed the page with no change (stuff on the page stayed only 510px wide). I then made a new id called “hcontent” with width=740 (!important) but when I changed the <div id> to “hcontent,” everything stretched all the way left and right. Changing the width in the css id “hcontent” didn’t change anything with the page. It was as if it didn’t see any “hcontent” id, so all the page’s content went all the way left and right. If it recognized the “hcontent” id, there should be a padding of 20px on the left and right sides. Any ideas?

The page can be viewed here: https://innerlooping.com/about/homepage-test

p.s. Sorry about the terrible writing. Hopefully it makes sense.