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scroll-snap-points-y

Deprecated
This feature is no longer recommended. Though some browsers might still support it, it may have already been removed from the relevant web standards, may be in the process of being dropped, or may only be kept for compatibility purposes. Avoid using it, and update existing code if possible; see the compatibility table at the bottom of this page to guide your decision. Be aware that this feature may cease to work at any time.

The scroll-snap-points-y CSS property defines the vertical positioning of snap points within the content of the scroll container they are applied to.

/* Keyword value */
scroll-snap-points-y: none;

/* Repeated snap points */
scroll-snap-points-y: repeat(400px);

/* Global values */
scroll-snap-points-y: inherit;
scroll-snap-points-y: initial;
scroll-snap-points-y: unset;

Syntax

Values

none: The scroll container does not define any snap points. Elements within the scroll container may still define snap points on behalf of the scroll container.
repeat(<length-percentage>): Defines an interval at which snap points are defined, starting from the container's relevant start edge. Only positive lengths are allowed. Percentages refer to the width of the container.

Formal definition

Initial value	`none`
Applies to	scroll containers
Inherited	no
Percentages	relative to same axis of the padding-box of the scroll container
Computed value	as specified, but with relative lengths converted into absolute lengths
Animation type	discrete

Formal syntax

none | repeat( <length-percentage> )where 
<length-percentage> = <length> | <percentage>

Examples

Setting vertical scroll snap points

HTML

<div id="container">
  <div>1</div>
  <div>2</div>
  <div>3</div>
</div>

CSS

#container {
  height: 200px;
  width: 220px;
  overflow-x: hidden;
  overflow-y: auto;
  scroll-snap-points-y: repeat(200px);
  scroll-snap-type: mandatory;
  font-size: 0;
}

#container > div {
  width: 200px;
  height: 200px;
  display: inline-block;
  line-height: 200px;
  text-align: center;
  font-size: 100px;
}

#container > div:nth-child(even) {
  background-color: #87EA87;
}

#container > div:nth-child(odd) {
  background-color: #87CCEA;
}

Result

Specifications

Not part of any standard.

Browser compatibilityUpdate compatibility data on GitHub

	Desktop
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari
`scroll-snap-points-y`	No	No	39 — 68	No	No	9 Prefixed 9 Prefixed Prefixed Implemented with the vendor prefix: -webkit-

	Mobile
	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`scroll-snap-points-y`	No	No	39 — 68	No	9 Prefixed 9 Prefixed Prefixed Implemented with the vendor prefix: -webkit-	No

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https://developer.mozilla.org/en-US/docs/Web/CSS/scroll-snap-points-y