Align open menu to burger icon

My menu is set to burger on desktop, aligned right and it’s inside the container.

However, when I click the burger to expand the menu, it’s aligned right to the browser window so the bugger the window, the further right the menu goes.

How do I right align the open menu so it’s under the burger icon?

Here is my site Read-Only:

I’m not sure if this is what you mean but you can change the way the dropdown works by adjusting it to over-right.

Screen Shot 2020-05-15 at 4.49.58 PM

Change the settings for Nav Menu 2 to this: