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

Constituent properties

This property is a shorthand for the following CSS properties:


/* <length> values */
scroll-margin-block: 10px;
scroll-margin-block: 1em .5em ;

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



An outset from the corresponding edge of the scroll container.


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 containerÔÇÖs coordinate space), then adding the specified outsets.

Formal definition

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

Formal syntax



CSS Scroll Snap Module Level 1 (CSS Scroll Snap 1)
# propdef-scroll-margin-block

Browser compatibility

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See also