How To Hide Scrollbar while Scroll Enabled Using CSS

I want to hide scrollbar while user can scroll object. There are some CSS trick to do that but require -webkit which is not support by perspective inline CSS.
Also make scrollbar thinner is good for me.
Thanks for any help.

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As following image shows most of the component when overflow and display scrollbar there will appear some empty space on top of them.

There is no way to get it by style so I only have to some how hide scroll or thin it.