Doesnt work if added to textarea

[pra-ver]

http://codepen.io/anon/pen/aBeoQB

[benjaminsuch]

Of course it does not work on a textarea. You can't modify a textarea to use a custom scrollbar or apply a custom scrollbar on a textarea. If you want a something which looks a like a textarea with a custom scrollbar you have to manually build a custom textarea with div containers and javascript.