Drop targets can also be nested within each other. Unlike a drop source, several drop targets may react to the same item being dropped.

Via Vue DnD doesn't provide a way to prevent propagation. Conversely, drag and drop targets can compare monitor.isOver() and monitor.isOver({shallow: false}) to see if only they or their nested targets are hovered. They can also check monitor.didDrop() and monitor.getDropResult() to see if the nested target has handled the drop, or even return a different drop result.