put widget over other elements

Our use case:

a openlayer3 map at a bottom layer.

different widgets(buttons, serach box, combo, etc.) directly over the map.

but, except the window widget, it seems other widgets will always try to occupy the map div like an empty div. I’ve tried applying css on these widgets to force position and zIndex, but it’s either useless or kinda weird.

You can use the abslayout to place widget in custom positions

http://docs.webix.com/desktop__absolute_layout.html

Also, you can create a custom DIV containers, position them at necessary points, and initialize extra UI in such DIV containers.