The problem with hoarding is you end up living off your reserves. Eventually, you’ll become stale. If you give away everything you have, you are left with nothing. This forces you to look, to be aware, to replenish. . . . Somehow the more you give away, the more comes back to you.
Paul Arden

scroll-padding-bottom

The scroll-padding-bottom property defines offsets for the bottom of the optimal viewing region of the scrollport: the region used as the target region for placing things in view of the user. This allows the author to exclude regions of the scrollport that are obscured by other content (such as fixed-positioned toolbars or sidebars) or to put more breathing room between a targeted element and the edges of the scrollport.
scroll-padding-bottom css reference