The scroll-behavior property specifies whether to smoothly animate the scroll position, instead of a straight jump, when the user clicks on a link within a scrollable box.
CSS Syntax:

Property Values
auto——>Allows a straight jump “scroll effect” between elements within the scrolling box. This is default.
smooth—–> Allows a smooth animated “scroll effect” between elements within the scrolling box.
initial-—–> Sets this property to its default value. Read about initial.
inherit——> Inherits this property from its parent element. Read about inherit