maskUnits attribute isn't specified, then the effect is as if a value of
objectBoundingBox were specified.
|Normative document||SVG 1.1 (2nd Edition)|
heightrepresent values in the current user coordinate system in place at the time when the
<mask>element is referenced (i.e., the user coordinate system for the element referencing the
<mask>element via the
heightrepresent fractions or percentages of the bounding box of the element to which the mask is applied. A bounding box could be considered the same as if the content of the
<mask>were bound to a "
0 0 1 1"
The following elements can use the