Property scrollbar-gutter

The scrollbar-gutter CSS property allows authors
to reserve space for the scrollbar, preventing
unwanted layout changes as the content grows while
also avoiding unnecessary visuals when scrolling
isn’t needed.

Syntax

/* Initial value */
scrollbar-gutter: auto;

/* "stable" keyword, with optional modifier */
scrollbar-gutter: stable;
scrollbar-gutter: stable both-edges;

/* Global values */
scrollbar-gutter: inherit;
scrollbar-gutter: initial;
scrollbar-gutter: revert;
scrollbar-gutter: revert-layer;
scrollbar-gutter: unset;