mask CSS property.

Values: <mask-layer>#
Initial value: see individual properties
Applies to: All elements. In SVG, it applies to container elements excluding the <defs> element and all graphics elements
Inherit: no
Percentages: see individual properties
Animatable: see individual properties
Media: visual
Computed value: see individual properties

CSS Standards

CSS 1
CSS 2
CSS 2.1
CSS 3
No
No
No
Yes