Submenu and Mobile Appearance Problem
I'm using Press theme >> https://themes.muffingroup.com/be/press/
Now I have 2 problems.
1. Desktop view problem.
Submenu which is too wide, how to make it narrow?

2. Mobile appearance
Kindly use your mobile and visit this link
You can see that in the head under banner, there is black background appeared. This happened only in post not Home page.

Comments
1. I see that you used MegaMenu instead of basic Menu. Please, check how to create Menus in this link
https://support.muffingroup.com/documentation/menus/
2. Sorry, but I cannot see any black space on the Mobile version of your website.
https://prnt.sc/vdw0tc
What phone did you use to check your website?
Greetings
Thanks
Is there anything else I could help you?
Best regards
2. Please, check "Full Width" in your sections options.
https://prnt.sc/vg0ity
Thanks
Just click on a pencil icon on your section.
https://prnt.sc/vhuawn
Thanks