scrollbar: default (visible)
scrollbar-hidden: hidden mode (invisible but still scrollable)
scrollbar-auto: auto mode (visible)
scrollbar-width-{spacing}: width of scrollbar
scrollbar-track-{color}: color of track/bar
scrollbar-thumb-{color}: color of thumb/handle
scrollbar-track-radius-{borderRadius}: border radius of track/bar
scrollbar-thumb-{color}: border radius of thumb/handle

then there are variants for above properties such as: hover, color, x, y


/* hover*/
hover:scrollbar-hidden                          /* hidden mode on hover */
hover:scrollbar-auto                            /* auto mode on hover */
hover:scrollbar-width-{spacing}                 /* width of scrollbar on hover */
hover:scrollbar-track-{color}                   /* track/bar color on hover */
hover:scrollbar-thumb-{color}                   /* thumb/handle of the bar color on hover */
hover:scrollbar-track-radius-{borderRadius}     /* radius of track/bar on hover */
hover:scrollbar-thumb-{color}                   /* radius of thumb/handle on hover */


/* hover variant */
hover:scrollbar-width-x-{spacing}               /* width of horizontal bar on hover */
hover:scrollbar-width-y-{spacing}               /* width of vertical bar on hover */
hover:scrollbar-track-x-{color}                 /* color of horizontal track on hover */
hover:scrollbar-track-y-{color}                 /* color of vertical track on hover */
hover:scrollbar-thumb-x-{color}                 /* color of thumb of horizontal bar on hover */
hover:scrollbar-thumb-y-{color}                 /* color of thumb of vertical bar on hover */


/* auto */
scrollbar-auto_width-{spacing}                  /* width when in auto mode */
scrollbar-auto_width-x-{spacing}                /* width of horizontal bar when in auto mode */
scrollbar-auto_width-y-{spacing}                /* width of vertical bar when in auto mode */
scrollbar-auto-track-{color}                    /* color of track when in auto mode */
scrollbar-auto-track-x-{color}                  /* color of horizontal track when in auto mode */
scrollbar-auto-track-y-{color}                  /* color of vertical track when in auto mode */
scrollbar-auto-thumb-{color}                    /* color of thumb when in auto mode */
scrollbar-auto-thumb-x-{color}                  /* color of thumb of horizontal bar when in auto mode */
scrollbar-auto-thumb-y-{color}                  /* color of thumb of vertical bar when in auto mode */

/* auto on hover */
hover:scrollbar-auto_width-{spacing}            /* width when auto on hover */
hover:scrollbar-auto_width-x-{spacing}          /* width of horizontal bar when in auto mode on hover */
hover:scrollbar-auto_width-y-{spacing}          /* width of vertical bar when in auto mode on hover */
hover:scrollbar-auto-track-{color}              /* color of track when in auto mode on hover */
hover:scrollbar-auto-track-x-{color}            /* color of horizontal track when in auto mode on hover */
hover:scrollbar-auto-track-y-{color}            /* color of vertical track when in auto mode on hover */
hover:scrollbar-auto-thumb-{color}              /* color of thumb when in auto mode on hover */
hover:scrollbar-auto-thumb-x-{color}            /* color of thumb of horizontal bar when in auto mode on hover */
hover:scrollbar-auto-thumb-y-{color}            /* color of thumb of vertical bar when in auto mode on hover */