Hello

To hide the responsive (mobile) menu try adding the following to the Custom CSS field of your templates parameters...

.slicknav_menu {

    display: block;

}

Would you have a URL to an example of the menu you wish to have only visible on mobile devices?

Ciarán

Hmm that's actually making the mobile menu appear on both full and mobile sized resolutions. My site is offline atm

My apologies. That should be the following instead...

.slicknav_menu {

    display: hide;

}

Presuming you are using a module to display the menu, you can try adding the following to the Module Class Suffix field of your templates parameters...

hidden-desktop

If that fails try adding a space just before the class name.

Ciarán

That's not working either.. So my full setup is I have no menu in the hornav position, and in the template parameters I have convert to module position set to yes for the menu. I put the new custom css code in and also set the Module Class Suffix field of the menu listed in the template menu section to 'hidden-desktop'. When I go to a mobile sized resolution on my browser I am seeing the mobile menu which has no actual menu.

Hello

It is difficult to say without seeing an example of the issue so it may be worth getting back to us once your site is hosted.
Maybe try changing the suggested CSS to the following...

.slicknav_menu {

    display: none !important ;

}

Ciarán

Aha, that did it. Thanks for the quick help again!!