Unable to edit Navigation bar

The first step is to make the “Shopping Nav” Active. It’s currently set to “display:none” in the css, probably because the menu isn’t active. Once you change display:none on that menu, then you can start positioning it to be split from the other menu at the top of the screen.

This is what needs to be changed in the CSS. Not directly, though. You need to change the menu to display in your settings. This is what I see when I look at the HTML of your site:

nav.shopping-nav {
     display: none;
}