mask-origin

The mask-origin property specifies the origin of a mask.

Formal Syntax

mask-origin = <coord-box># <coord-box> = <paint-box> | view-box

Initial value: border-box
Applies to: All elements. In SVG, it applies to container elements excluding the defs element, all graphics elements and the use element
Inherited: no
Percentages: n/a
Computed value: list, each item the keyword as specified
Animation type: discrete
Media: visual

// Access via element.style element.style.maskOrigin = "border-box";

standard | MDN · Spec

Feature	Chrome	Firefox	Safari	Edge
mask-origin	120	53	15.4	120
border	1	—	15.4	79
border-box	120	53	—	120
content	1	—	15.4	79
content-box	120	53	—	120
fill-box	120	53	—	120
padding	1	—	15.4	79
padding-box	120	53	—	120
stroke-box	120	53	—	120
view-box	120	53	—	120