overscroll-behavior-x
The overscroll-behavior-x
CSS property sets the browser's behavior when the horizontal boundary of a scrolling area is reached.
See overscroll-behavior
for a full explanation.
css
/* Keyword values */
overscroll-behavior-x: auto; /* default */
overscroll-behavior-x: contain;
overscroll-behavior-x: none;
/* Global values */
overscroll-behavior-x: inherit;
overscroll-behavior-x: initial;
overscroll-behavior-x: revert;
overscroll-behavior-x: revert-layer;
overscroll-behavior-x: unset;
Syntax
The overscroll-behavior-x
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 neighboring scrolling areas, e.g. underlying elements will not scroll.
none
-
No scroll chaining occurs to neighboring scrolling areas, and default scroll overflow behavior is prevented.
Formal definition
Initial value | auto |
---|---|
Applies to | non-replaced block-level elements and non-replaced inline-block elements |
Inherited | no |
Computed value | as specified |
Animation type | discrete |
Formal syntax
Examples
Preventing an underlying element from scrolling horizontally
In our simple overscroll-behavior-x example (see source code also), we have two block-level boxes, one inside the other. The outer box has a large width
set on it so the page will scroll horizontally. The inner box has a small width (and height
) set on it so it sits comfortably inside the viewport, but its content is given a large width
so it will scroll horizontally.
By default, when the inner box is scrolled and a scroll boundary is reached, the whole page will begin to scroll, which is probably not what we want. To avoid this, you can set overscroll-behavior-x: contain
on the inner box:
css
main > div {
height: 300px;
width: 500px;
overflow: auto;
position: relative;
top: 100px;
left: 100px;
overscroll-behavior-x: contain;
}
Specifications
Specification |
---|
CSS Overscroll Behavior Module Level 1 # overscroll-behavior-longhands-physical |
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