Remove webkit-scrollbar, webkit-scrollbar-track and `webkit-scrollbar-thumb'

[stumbo]

These values were set to non-default in custom.css and are interferring with the bibliography page (and all other pages in Chrome).

It appears they were set this way with some carousel work that never came to fruition.

I suspect both the custom.css and carousel.css files are no longer needed and can be removed. That requires more investigation.

[MattHeffron]

This does bring back scroll bars in general.
@stumbo However, on the Bibliography page, the only scroll bar is for the Authors panel, but there's no scroll bar for the main Bibliography entries panel. This probably is due to a different css entry.

[pamoroso]

I can't test this but it looks reasonable.

[stumbo]

This does bring back scroll bars in general. @stumbo However, on the Bibliography page, the only scroll bar is for the Authors panel, but there's no scroll bar for the main Bibliography entries panel. This probably is due to a different css entry.

@MattHeffron Good catch. I wasn't aggressive enough in removing content in custom.css. Removed another element, -ms-overflow-style. It was set to force the window to do nothing on overflow. Removing it restores the desired behavior, a scrollbar when the window overflows the available space.

Chrome in incognito mode (to make sure none of the css was cached) clearly shows both scrollbars now and allows using them.