offset-distance

The offset-distance CSS property specifies a position along an offset-path for an element to be placed.

Note: Early versions of the spec called this property motion-offset.

Syntax

/* Default value */
offset-distance: 0;

/* the middle of the offset-path */
offset-distance: 50%;

/* a fixed length positioned along the path */
offset-distance: 40px;
<length-percentage>
A length that specifies how far the element is along the path (defined with offset-path).
100% represents the total length of the path (when the offset-path is defined as a basic shape or path()).

Formal syntax

<length-percentage>

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

Examples

The motion aspect in CSS Motion Path typically comes from animating the offset-distance property. If you want to animate an element along its full path, you would define its offset-path and then set up an animation that takes the offset-distance from 0% to 100%.

HTML

<div id="motion-demo"></div>

CSS

#motion-demo {
  offset-path: path('M20,20 C20,100 200,0 200,100');
  animation: move 3000ms infinite alternate ease-in-out;
  width: 40px;
  height: 40px;
  background: cyan;
}

@keyframes move {
  0% {
    offset-distance: 0%;
  }
  100% {
    offset-distance: 100%;
  }
}

Result

Specifications

Specification Status Comment
Motion Path Module Level 1
The definition of 'offset-distance' in that specification.
Working Draft Initial definition
Initial value0
Applies totransformable elements
Inheritedno
Percentagesrefer to the total path length
Mediavisual
Computed valuefor <length> the absolute value, otherwise a percentage
Animation typea length, percentage or calc();
Canonical orderper grammar

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
offset-distance
Experimental
Chrome Full support 55
Full support 55
Full support 46
Alternate Name
Alternate Name Uses the non-standard name: motion-distance
Edge No support NoFirefox Full support 69
Disabled
Full support 69
Disabled
Disabled From version 69: this feature is behind the layout.css.motion-path.enabled preference (needs to be set to true). To change preferences in Firefox, visit about:config.
IE No support NoOpera Full support 42
Full support 42
Full support 33
Alternate Name
Alternate Name Uses the non-standard name: motion-distance
Safari No support NoWebView Android Full support 55
Full support 55
Full support 46
Alternate Name
Alternate Name Uses the non-standard name: motion-distance
Chrome Android Full support 55
Full support 55
Full support 46
Alternate Name
Alternate Name Uses the non-standard name: motion-distance
Firefox Android No support NoOpera Android ? Safari iOS No support NoSamsung Internet Android Full support 6.0

Legend

Full support  
Full support
No support  
No support
Compatibility unknown  
Compatibility unknown
Experimental. Expect behavior to change in the future.
Experimental. Expect behavior to change in the future.
User must explicitly enable this feature.
User must explicitly enable this feature.
Uses a non-standard name.
Uses a non-standard name.