Most efficient mobile UI for double navigation

1. How do I make two navigation bars in HTML?

How do I make two navigation bars in HTML?

Create A Subnav

Use any element to open the subnav/dropdown menu, e.g. a <button>, <a> or <p> element. Use a container element (like <div>) to create the subnav menu and add the subnav links inside it. Wrap a <div> element around the button and the <div> to position the subnav menu correctly with CSS.