`scroll-padding-inline-start` CSS property

The scroll-padding-inline-start property defines offsets for the start edge in the inline dimension of the optimal viewing region of the scrollport: the region used as the target region for placing things in view of the user. This allows the author to exclude regions of the scrollport that are obscured by other content (such as fixed-positioned toolbars or sidebars) or to put more breathing room between a targeted element and the edges of the scrollport.

Try it

scroll-padding-inline-start: 0;

scroll-padding-inline-start: 20px;

scroll-padding-inline-start: 2em;

<section class="default-example" id="default-example">
  <div class="scroller" 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%;
}

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

.scroller > 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;
}

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

Syntax

/* Keyword values */
scroll-padding-inline-start: auto;

/* <length> values */
scroll-padding-inline-start: 10px;
scroll-padding-inline-start: 1em;
scroll-padding-inline-start: 10%;

/* Global values */
scroll-padding-inline-start: inherit;
scroll-padding-inline-start: initial;
scroll-padding-inline-start: revert;
scroll-padding-inline-start: revert-layer;
scroll-padding-inline-start: unset;

Values

<length-percentage>

An inwards offset from the inline start edge of the scrollport, as a valid length or a percentage.

auto

The offset is determined by the user agent. This will generally be 0px, but a user agent is able to detect and do something else if a non-zero value is more appropriate.

Formal definition

Formal syntax

scroll-padding-inline-start = 
  auto |
  <length-percentage>

<length-percentage> = 
  <length> |
  <percentage>

Specifications

Browser compatibility

See also

• CSS scroll snap module
• Well-controlled scrolling with CSS scroll snap on web.dev (2018)