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The scroll-margin-top property defines the top margin of 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.

Initial value0
Applies toall elements
Computed valueas specified
Animation typeby computed value type
Canonical orderper grammar


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

/* Global values */
scroll-margin-top: inherit;
scroll-margin-top: initial;
scroll-margin-top: unset;


An outset from the top edge of the scroll container.

Formal syntax

auto | <length>


Specification Status Comment
CSS Scroll Snap Module Level 1
The definition of 'scroll-margin-top' in that specification.
Candidate Recommendation Initial definition

Browser compatibility

Update compatibility data on GitHub
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidEdge MobileFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
scroll-margin-topChrome Full support 69Edge No support NoFirefox Full support 68IE No support NoOpera Full support 56Safari Full support 11WebView Android Full support 69Chrome Android Full support 69Edge Mobile No support NoFirefox Android Full support 68Opera Android Full support 48Safari iOS Full support 11Samsung Internet Android No support No


Full support  
Full support
No support  
No support


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