scroll-snap-type: x mandatory;
scroll-snap-type: x proximity;
<section class="default-example" id="default-example">
<div id="example-element">
<div>1</div>
<div>2</div>
<div>3</div>
</div>
<div class="info">Scroll »</div>
</section>
.default-example {
flex-wrap: wrap;
}
.default-example .info {
width: 100%;
padding: 0.5em 0;
font-size: 90%;
}
#example-element {
text-align: left;
width: 250px;
height: 250px;
overflow-x: scroll;
display: flex;
box-sizing: border-box;
border: 1px solid black;
}
#example-element > div {
flex: 0 0 250px;
width: 250px;
background-color: rebeccapurple;
color: white;
font-size: 30px;
display: flex;
align-items: center;
justify-content: center;
scroll-snap-align: start;
}
#example-element > div:nth-child(even) {
background-color: white;
color: rebeccapurple;
}
If the content in the scroll port changes â for example, if content is added, moved, deleted, or resized â the scroll container will re-snap to the previously snapped content if that content is still present.
If the value of a scroll snap-related property, such as scroll-snap-type
or scroll-margin
, is changed, the scroll container will re-snap based on the current value of scroll-snap-type
.
Specifying any precise animations or physics used to enforce those snap points is not covered by this property but instead left up to the user agent.
Syntax/* No snapping */
scroll-snap-type: none;
/* Keyword values for snap axes */
scroll-snap-type: x;
scroll-snap-type: y;
scroll-snap-type: block;
scroll-snap-type: inline;
scroll-snap-type: both;
/* Optional keyword values for snap strictness */
/* mandatory | proximity */
scroll-snap-type: x mandatory;
scroll-snap-type: y proximity;
scroll-snap-type: both mandatory;
/* Global values */
scroll-snap-type: inherit;
scroll-snap-type: initial;
scroll-snap-type: revert;
scroll-snap-type: revert-layer;
scroll-snap-type: unset;
Values
none
When the visual viewport of this scroll container is scrolled, it must ignore snap points.
x
The scroll container snaps to snap positions in its horizontal axis only.
y
The scroll container snaps to snap positions in its vertical axis only.
block
The scroll container snaps to snap positions in its block axis only.
inline
The scroll container snaps to snap positions in its inline axis only.
both
The scroll container snaps to snap positions in both of its axes independently (potentially snapping to different elements in each axis).
mandatory
The visual viewport of this scroll container must snap to a snap position if it isn't currently scrolled.
proximity
The visual viewport of this scroll container may snap to a snap position if it isn't currently scrolled. The user agent decides if it snaps or not based on scroll parameters. This is the default snap strictness if any snap axis is specified.
scroll-snap-type =Examples Snapping in different axes HTML
none |
[ x | y | block | inline | both ] [ mandatory | proximity ]?
<main>
<section class="x mandatory-scroll-snapping" dir="ltr">
<div>X Mand. LTR</div>
<div>2</div>
<div>3</div>
<div>4</div>
<div>5</div>
</section>
<section class="x proximity-scroll-snapping" dir="ltr">
<div>X Prox. LTR</div>
<div>2</div>
<div>3</div>
<div>4</div>
<div>5</div>
</section>
<section class="y mandatory-scroll-snapping" dir="ltr">
<div>Y Mand. LTR</div>
<div>2</div>
<div>3</div>
<div>4</div>
<div>5</div>
</section>
<section class="y proximity-scroll-snapping" dir="ltr">
<div>Y Prox. LTR</div>
<div>2</div>
<div>3</div>
<div>4</div>
<div>5</div>
</section>
<section class="x mandatory-scroll-snapping" dir="rtl">
<div>X Mand. RTL</div>
<div>2</div>
<div>3</div>
<div>4</div>
<div>5</div>
</section>
<section class="x proximity-scroll-snapping" dir="rtl">
<div>X Prox. RTL</div>
<div>2</div>
<div>3</div>
<div>4</div>
<div>5</div>
</section>
<section class="y mandatory-scroll-snapping" dir="rtl">
<div>Y Mand. RTL</div>
<div>2</div>
<div>3</div>
<div>4</div>
<div>5</div>
</section>
<section class="y proximity-scroll-snapping" dir="rtl">
<div>Y Prox. RTL</div>
<div>2</div>
<div>3</div>
<div>4</div>
<div>5</div>
</section>
</main>
CSS
main {
display: flex;
align-items: center;
justify-content: space-between;
flex-flow: column nowrap;
font-family: monospace;
}
section {
display: flex;
margin: 1em auto;
outline: 1px dashed lightgray;
flex: none;
overflow: auto;
}
.x {
width: 100%;
height: 128px;
flex-flow: row nowrap;
overflow-y: hidden;
}
.y {
width: 256px;
height: 256px;
flex-flow: column nowrap;
overflow-x: hidden;
}
/* scroll-snap */
.x.mandatory-scroll-snapping {
scroll-snap-type: x mandatory;
}
.x.proximity-scroll-snapping {
scroll-snap-type: x proximity;
}
.y.mandatory-scroll-snapping {
scroll-snap-type: y mandatory;
}
.y.proximity-scroll-snapping {
scroll-snap-type: y proximity;
}
div {
text-align: center;
scroll-snap-align: center;
flex: none;
}
.x div {
line-height: 128px;
font-size: 64px;
width: 100%;
height: 128px;
}
.y div {
line-height: 256px;
font-size: 128px;
width: 256px;
height: 100%;
}
/* appearance fixes */
.y div:first-child {
line-height: 1.3;
font-size: 64px;
}
/* coloration */
div:nth-child(even) {
background-color: #87ea87;
}
div:nth-child(odd) {
background-color: #87ccea;
}
Results Specifications Browser compatibility
Loadingâ¦
See alsoscroll-margin
, scroll-padding
scroll-snap-align
, scroll-margin
, scroll-snap-stop
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