sidebar in mobile is glitchy

I’m having trouble with the Sidebar in the Arouse theme on mobile. It is only half the width of the mobile screen, regardless which widgets I use. Even when I remove all of them but a simple text box it has the same problem, leading me to believe it is a CSS problem. But I don’t know code and don’t know how to fix it.
The page isnt online. Its running on xampp.
Any help out there?

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• This topic was modified 6 years ago by Steven Stern (sterndata).
• This topic was modified 6 years ago by Steven Stern (sterndata).