Make scroll bar sit on top of content, no extra width

[djoks]

Hello, please see my screenshot I would like to get rid of the gap on the right where the scroll bar is, my content should fill the entire side-bar area, I want to scroll bar to appear on top of the content now expand the width next to it.

[isherwood]

.mCSB_container_wrapper {margin-right: 0;}
.mCSB_container_wrapper > .mCSB_container {padding-right: 0;}