scroll-snap-points-y

Deprecated
This feature has been removed from the Web standards. Though some browsers may still support it, it is in the process of being dropped. 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;

Initial value	`none`
Applies to	scroll containers
Inherited	no
Percentages	relative to same axis of the padding-box of the scroll container
Media	interactive
Computed value	as specified, but with relative lengths converted into absolute lengths
Animation type	discrete
Canonical order	the unique non-ambiguous order defined by the formal grammar

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 syntax

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

Example

HTML Content

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

CSS Content

#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;
}

Specification

This property was once defined in the early draft of CSS Scroll Snap Points Module but later removed from the specification in favor of element-based snapping.

Feature	Chrome	Firefox (Gecko)	Internet Explorer	Opera	Safari (WebKit)
Basic support	No support	39.0 (39.0)	No support	No support	9-webkit

Feature	Android	Firefox Mobile (Gecko)	Firefox OS	IE Phone	Opera Mobile	Safari Mobile
Basic support	No support	39.0 (39.0)^[1]	39.0 (39.0)	No support	No support	9-webkit

[1] On Firefox Mobile, available since Gecko 39, but behind the preference layout.css.vertical-text.enabled, disabled by default.