Brine - How to keep the banner full width but constrain body text?

Hi everyone!

I use the Brine template, and am trying to figure out how to keep my hero banner and header to the full width of the screen, while keeping the body content constrained. I've tried using the following: 

body {
    max-width: 960px;
    margin: 0 auto;
}

This does change the content to the width I want it at, but unfortunately also squishes the hero banner into the same size. Is there any way I can achieve the look I want without using spacers on the page?

Thank you!

Hi NaomiHt,

I just made changes for this container to display full-width while keep the body content within a smaller width, I can implement on your site if you have an url to check?

Thank you @RyanDejaegher!

That works perfectly, however I realise I forgot to mention that I also wanted the header to remain full width along with the banner - I managed to sort that out with this:

.tweak-site-width-option-full-background .Header-inner {
  max-width:100%;
  margin-left:auto;
  margin-right:auto;
}