The overscroll-behavior-y CSS property sets the browser's behavior when the vertical boundary of a scrolling area is reached.

See overscroll-behavior for a full explanation.

/* Keyword values */
overscroll-behavior-y: auto; /* default */
overscroll-behavior-y: contain;
overscroll-behavior-y: none;

/* Global values */
overscroll-behavior-y: inherit;
overscroll-behavior-y: initial;
overscroll-behavior-y: unset;


The overscroll-behavior-y property is specified as a keyword chosen from the list of values below.


The default scroll overflow behavior occurs as normal.
Default scroll overflow behavior is observed inside the element this value is set on (e.g. "bounce" effects or refreshes), but no scroll chaining occurs to neighboring scrolling areas, e.g. underlying elements will not scroll.
No scroll chaining occurs to neighboring scrolling areas, and default scroll overflow behavior is prevented.

Formal definition

Initial valueauto
Applies tonon-replaced block-level elements and non-replaced inline-block elements
Computed valueas specified
Animation typediscrete

Formal syntax

contain | none | auto


Preventing an underlying element from scrolling vertically

.messages {
  height: 220px;
  overflow: auto;
  overscroll-behavior-y: contain;

See overscroll-behavior for a full example and explanation.


Specification Status Comment
CSS Overscroll Behavior Module Level 1
The definition of 'overscroll-behavior-y' in that specification.
Working Draft

Browser compatibility

BCD tables only load in the browser

See also