Firefox Tomorrow

css shorthand property

`scroll-margin-block` CSS property

View on MDN ↗

The scroll-margin-block shorthand property sets the scroll margins of an element in the block dimension.

Interactive exampleOpen the canonical MDN source to run this embedded demo.
scroll-margin-block: 0;
scroll-margin-block: 20px;
scroll-margin-block: 2em;
<section class="default-example" id="default-example">
  <div class="scroller">
    <div>1</div>
    <div id="example-element">2</div>
    <div>3</div>
  </div>
  <div class="info">Scroll »</div>
</section>
.default-example .info {
  inline-size: 100%;
  padding: 0.5em 0;
  font-size: 90%;
  writing-mode: vertical-rl;
}

.scroller {
  text-align: left;
  height: 250px;
  width: 270px;
  overflow-y: scroll;
  display: flex;
  flex-direction: column;
  box-sizing: border-box;
  border: 1px solid black;
  scroll-snap-type: y mandatory;
}

.scroller > div {
  flex: 0 0 250px;
  background-color: rebeccapurple;
  color: white;
  font-size: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  scroll-snap-align: start;
}

.scroller > div:nth-child(even) {
  background-color: white;
  color: rebeccapurple;
}

Constituent properties

This property is a shorthand for the following CSS properties:

Syntax

/* <length> values */
scroll-margin-block: 10px;
scroll-margin-block: 1em 0.5em;

/* Global values */
scroll-margin-block: inherit;
scroll-margin-block: initial;
scroll-margin-block: revert;
scroll-margin-block: revert-layer;
scroll-margin-block: unset;

Values

  • &lt;length&gt;
    • : An outset from the corresponding edge of the scroll container.

Description

The scroll-margin values represent outsets defining the scroll snap area that is used for snapping this box to the snapport. The scroll snap area is determined by taking the transformed border box, finding its rectangular bounding box (axis-aligned in the scroll container’s coordinate space), then adding the specified outsets.

Formal definition

Formal syntax

Specifications

SpecificationsStandards references are available on the canonical MDN page.

Browser compatibility

Browser compatibilityCompatibility data is available on the canonical MDN page.

See also