Your question is not clear enough. I see you have added a menu item and set “Full-width” below the “Full-width” you see the drop-down with HTML blocks, choose the one you want to show on this menu item. You can show any content in the HTML block links, texts, images even products.
yes, the menu works well on hover the HTML block is showing.
i want to prevent click on menu that goes to another page.
usually this is done using a placeholder custome link menu with # in the address.
but when you use the custom menu, you can’t use HTML block. is this more clear ?