Navigation Menu Hanging off Page

Question:
Hello, I seem to be having an issue with the template I’m using. My navigation menu hangs off the page and creates a white space on the side when the window is small on the computer, or when you view the site on an iPad (or a smaller screen). But, if the window is big enough, it’s fine.

Product:
Wix Website Editor

What are you trying to achieve:
I thought that the menu would just adjust with the window size, but maybe that is not the case? Do I need to move the menu between the dotted lines? Or, is there a way to have the menu move when the window size is adjusted?

What have you already tried:
Played around with the settings with no luck.

Additional information:
I’m fine with moving the menu, but we do like it on the side. Here is the site for reference: https://mookidcity.wixsite.com/mookidcity-v4