overscroll-behavior-y - CSS: Cascading Style Sheets 编辑

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;

Syntax

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

Values

auto

The default scroll overflow behavior occurs as normal.

contain

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 neighbouring scrolling areas, e.g. underlying elements will not scroll.

none

No scroll chaining occurs to neighbouring scrolling areas, and default scroll overflow behavior is prevented.

Formal definition

Formal syntax

contain | none | auto

Examples

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.

Specifications

Browser compatibility

BCD tables only load in the browser

See also

• Take control of your scroll: customizing pull-to-refresh and overflow effects
• The mapped logical properties: overscroll-behavior-inline, overscroll-behavior-block