# Objective
A more robust scrolling example that doesn't require `Pickable {
should_block_lower: false, .. }` or `Pickable::IGNORE`, and properly
handles nested scrolling nodes.
The current example shows nested scrolling, but this is only functional
because the parent scrolls along a different axis than the children.
## Solution
Instead of only scrolling the top node that is found in the `HoverMap`
we trigger the `OnScroll` event on it.
This event then propagates up the hierarchy until any scrolling node
that has room to scroll along that axis consumes the event.
The now redundant `Pickable` components were removed from the example.
The “Nested Scrolling Lists” portion was adjusted to show the new
reliable nested scrolling.
## Testing
Check out the example. It should work just as it did before.
9ba643d7ba