Change width of Menu Bar on home page.

Hello,

I’ve got a custom theme I’m using based on the shape starter theme tutorial.

The width of my home page is a little longer than the rest of my pages / posts. I’m using the front-page.php template to have a custom homepage.

My menubar fits right on the homepage, but not on the rest of my pages on my site (you can see the issue at http://toastdispatch.com, then go to any other page and look at the red menubar, it doesn’t match up with the content.)

What would be the best way to fix it so that I have the menubar at one length on the home page, and another length that fits the rest of the pages on my website?

Thanks.