z-ordering of hover elements in state machine editor

[xgo-work]

hover elements showing the code of the impacts and conditions are displayed behind the other elements (state and flow lines).

z-index in css elements is not sufficient.
The issue is related to stacking contexts that are induced by the presence of transform css elements injected in the divs directly.

https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_Positioning/Understanding_z_index/The_stacking_context

The transform should be hoisted at top level of the state machine editor.

[xgo-work]

Alternatively, a modal outside/over the structure could appear on hover after 1 second (tooltip like)