Menu Placement on Page

I am developing the site https://www.webrevmarketing.com/wp, and I am having an issue with the navigation (menu) placement on the page. I would like to move it over to the left so it is more in-line with the slider on the right side. I’ve messed around with the code below, but can’t seem to do it. If anyone can help it’d be much appreciated!

The code in the stylesheet is as follows:
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