topOffset should relative scrollElement

[bigbigDreamer]

Just like in CSS with position: sticky, setting top can trigger stickiness at a certain distance from the top of the scrolling element. The same applies to sticky positioning. Currently, the default is top: 0, meaning that stickiness is triggered based on the offset, but the actual sticky position is not relative to the top of the scrollable element.

The above is just a use case scenario. I would appreciate your critique, corrections, and suggestions. Thank you very much.