Remove mobile class from ordinary start page?

Hi,

The mobile navigation is displayed in the page view for screens. How do I remove the navigation but keep it for mobile devices?

The html tag is: <select class="select-menu">

I’m using the Cherry Framework 3.0 and have encountered quite some problems when trying to get a child theme in place. A lot of css were overriden by this empty child theme. I have now got most things in place (via the child theme) but still have some issues to solve, this mobile navigation for example.

Many thanks in advance for looking into this.

Best regards
Cecilia