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scroll-snap-stop

This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The scroll-snap-stop CSS property defines whether the scroll container is allowed to "pass over" possible snap positions.

/* Keyword values */
scroll-snap-stop: normal;
scroll-snap-stop: always;

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

Syntax

Values

normal
When the visual viewport of this element's scroll container is scrolled, it may "pass over" possible snap positions.
always
The scroll container must not "pass over" a possible snap position; and must snap to the first of this elements' snap positions.

Formal definition

Initial value normal
Applies to all elements
Inherited no
Computed value as specified
Animation type discrete

Formal syntax

normal | always

Examples

Snapping in different axes

This example is duplicated from scroll-snap-type with minor variances.

CSS

/* setup */
:root, body {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-flow: column nowrap;
  font-family: monospace;
}
.container {
  display: flex;
  overflow: auto;
  outline: 1px dashed lightgray;
  flex: none;
}

.container.x {
  width: 100%;
  height: 128px;
  flex-flow: row nowrap;
}

.container.y {
  width: 256px;
  height: 256px;
  flex-flow: column nowrap;
}
/* definite scroll snap */
.mandatory-scroll-snapping > div {
  scroll-snap-stop: always;
}
.proximity-scroll-snapping > div {
  scroll-snap-stop: normal;
}
/* scroll-snap */
.x.mandatory-scroll-snapping {
  scroll-snap-type: x mandatory;
}

.y.mandatory-scroll-snapping {
  scroll-snap-type: y mandatory;
}

.x.proximity-scroll-snapping {
  scroll-snap-type: x proximity;
}

.y.proximity-scroll-snapping {
  scroll-snap-type: y proximity;
}

.container > div {
  text-align: center;
  scroll-snap-align: center;
  flex: none;
}

.x.container > div {
  line-height: 128px;
  font-size: 64px;
  width: 100%;
  height: 128px;
}

.y.container > div {
  line-height: 256px;
  font-size: 128px;
  width: 256px;
  height: 256px;
}
/* appearance fixes */
.y.container > div:first-child {
  line-height: 1.3;
  font-size: 64px;
}
/* coloration */
.container > div:nth-child(even) {
  background-color: #87EA87;
}

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

HTML

<div class="container x mandatory-scroll-snapping" dir="ltr">
  <div>X Mand. LTR </div>
  <div>2</div>
  <div>3</div>
  <div>4</div>
  <div>5</div>
</div>

<div class="container x proximity-scroll-snapping" dir="ltr">
  <div>X Proximity LTR</div>
  <div>2</div>
  <div>3</div>
  <div>4</div>
  <div>5</div>
</div>

<div class="container y mandatory-scroll-snapping" dir="ltr">
  <div>Y Mand. LTR</div>
  <div>2</div>
  <div>3</div>
  <div>4</div>
  <div>5</div>
</div>

<div class="container y proximity-scroll-snapping" dir="ltr">
  <div>Y Prox. LTR</div>
  <div>2</div>
  <div>3</div>
  <div>4</div>
  <div>5</div>
</div>

<div class="container x mandatory-scroll-snapping" dir="rtl">
  <div>X Mandatory RTL</div>
  <div>2</div>
  <div>3</div>
  <div>4</div>
  <div>5</div>
</div>

<div class="container x proximity-scroll-snapping" dir="rtl">
  <div>X Proximity RTL</div>
  <div>2</div>
  <div>3</div>
  <div>4</div>
  <div>5</div>
</div>

<div class="container y mandatory-scroll-snapping" dir="rtl">
  <div>Y Mand. RTL</div>
  <div>2</div>
  <div>3</div>
  <div>4</div>
  <div>5</div>
</div>

<div class="container y proximity-scroll-snapping" dir="rtl">
  <div>Y Prox. RTL</div>
  <div>2</div>
  <div>3</div>
  <div>4</div>
  <div>5</div>
</div>

Result

Specifications

Specification Status Comment
CSS Scroll Snap Module Level 1
The definition of 'scroll-snap-stop' in that specification.
Candidate Recommendation Initial definition

Browser compatibilityUpdate compatibility data on GitHub

Desktop
Chrome Edge Firefox Internet Explorer Opera Safari
scroll-snap-stop 75 79 No No 62 No
Mobile
Android webview Chrome for Android Firefox for Android Opera for Android Safari on iOS Samsung Internet
scroll-snap-stop 75 75 No No No 11.0

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Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/CSS/scroll-snap-stop