Which pop-up menu to choose with remembering cookies?

Question

css

Guys, help me find a horizontal drop-down menu of the canvas type so that it remembers the position of the menu (that is, if you clicked to expand, then after reloading the page, the menu position remains open)

Answer 1

It is normal to do this, through JavaScript and local storage.
When expanding, record that the menu is expanded into a variable in local storage, then when loading the page, check if there is something in it, if there is, then make it expanded.