Summary

The scroll-behavior CSS property specifies the scrolling behavior for a scrolling box, when scrolling happens due to navigation or CSSOM scrolling APIs. Any other scrolls, e.g. those that are performed by the user, are not affected by this property. When this property is specified on the root element, it applies to the viewport instead.

User agents may ignore this property.

Initial valueauto
Applies toscrolling boxes
Inheritedno
Mediavisual
Computed valueas specified
Animatableno
Canonical orderthe unique non-ambiguous order defined by the formal grammar

Syntax

/* Keyword values */
scroll-behavior: auto;
scroll-behavior: smooth;

/* Global values */
scroll-behavior: inherit;
scroll-behavior: initial;
scroll-behavior: unset;

Values

auto
The scrolling box is scrolled in an instant fashion.
smooth
The scrolling box is scrolled in a smooth fashion using a user-agent-defined timing function over a user-agent-defined period of time. User agents should follow platform conventions, if any.

Formal syntax

auto | smooth

Example

HTML

<div id="scrollContainer">
  This is some long text, which is used to demonstrate the effect of the <code>scroll-behavior</code> CSS property.
</div>
<button class="scroll-auto">auto</button>
<button class="scroll-smooth">smooth</button>

CSS

div {
  width: 100px;
  height: 100px;
  overflow-y: scroll;
}

.auto {
  scroll-behavior: auto;
}

.smooth {
  scroll-behavior: smooth;
}

JavaScript

function scrollElement(behavior) {
  var scrollContainer = document.getElementById("scrollContainer");
  scrollContainer.className = behavior;
  var scrollPosition = scrollContainer.scrollTop === 0 ? scrollContainer.scrollHeight : 0;
  scrollContainer.scrollTo(0, scrollPosition);
}

// Adding event listeners to the buttons.
document.querySelector(".scroll-auto").addEventListener(
  "click",
  function () {
   scrollElement("auto");
  });
document.querySelector(".scroll-smooth").addEventListener(
  "click",
  function () {
   scrollElement("smooth");
  });

Output

Specifications

Specification Status Comment
CSS Object Model (CSSOM) View Module
The definition of 'scroll-behavior' in that specification.
Working Draft Initial specification

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
Basic support (Yes)[1] 36 (36) No support (Yes)[1] No support
Feature Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support No support 36 (36) No support No support No support

[1] Supported in Chrome and Opera by enabling the "Smooth Scrolling" or "Enable experimental web platform features" flag.

Document Tags and Contributors

 Contributors to this page: Druzion, teoli, Sebastianz, fscholz, cvrebert, Jeremie, Cust0dian, phistuck
 Last updated by: Druzion,