Sparkling Menu instead of right > left

Hello admins,
thanks for the great free theme.
Sorry for my bad English
We would like the menu permanently on the left side instead of right.
I had found something in the CSS and I was already happy about the success :slight_smile:
Unfortunately, the menu is currently in the Microsoft Edge on the left side … If I use the Chrome or Firefox, the menu is again on the right side.

Can you give me a hint what I did wrong?

Our Site:

Good morning Mconards and thank you for reaching us

I just checked your website by using Firefox and chrome and the menu for me in both browser is aligned to the left, not on the right, please check attached screenshot, most probably you already fixed this problem without me