Since my navigation structure is very big, I can not arrange them horizontally. I need a vertical navigation on the left side of the content. I could assign the mainnav in the sidebar-1. But then lose on a mobile device the upper menu button. The navigation will then appear below the content. Does not look nice.
How can I insert mainnav left to the content that I can call up the navigation on the upper button on a mobile device?
How can I insert mainnav left to the content that I can call up the navigation on the upper button on a mobile device?