v.2.0.4
Make use of css property 'pointer-events' to make ChildButton
un-clickable if it's not visible, previously it was poorly handled by 'z-index' which occurred cross-browsing issue.
Make use of css property 'pointer-events' to make ChildButton
un-clickable if it's not visible, previously it was poorly handled by 'z-index' which occurred cross-browsing issue.