There was some early work done to add a carousel feature to the landing page. It never was completed, however we have some files that are still within Hugo. There are two css files and one of them custom.css was overwriting css values for scrollbars. This disabled scroll bars on all our pages. With the implementation of the bibliography, the lack of scrollbars became apparent.
The work then is to review all the code base for any legacy carousel work and remove it.