overflow: overlayThe overflow: overlay CSS declaration is an alias to overflow: auto. Historically, it caused non-standard behavior, allowing scrollbars to overlay content without taking up layout space.cssCSSlimitedhttps://drafts.csswg.org/css-overflow-3/#propdef-overflowcss-overflow-overlayhttps://developer.mozilla.org/docs/Web/CSS/Reference/Values/overflow_valuecss.types.overflow.overlayhttps://nowyoucanuse.com/features--overflow-overlay.html