Adjust Home Page Width

Hello, I want to adjust the width of the body of my home page to “no sidebar, one column” from “no sidebar, full width”. The problem is that if I do that, it adjusts the entire page with the exception of the header image. So the header menus are distorted at one column width. I have a screen shot I can show you, but I do not want to leave the page like that because the website is live. Let me know where to post it if you need to see it.

This issue only seems to be affecting the home page, I have other pages with the smart slider 3 short code active and they are single column body width, and the header menu is normal. I think it is something unique to the home page that is causing it. Can you assist? Thank you.

The page I need help with: [log in to see the link]