CSS mask-type Property

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.example {
  mask-type: alpha;


The mask-type CSS property sets whether an SVG <mask> element is used as a luminance or an alpha mask. It applies to the <mask> element itself.

Default value:luminance
JavaScript syntax:

Standard Syntax

mask-type: luminance|alpha|initial|inherit|revert|revert-layer|unset;

Browser Support


Property Values

The following table describes the values of this property:

Value Description
luminance Is a keyword indicating that the associated mask image is a luminance mask, i.e., that its relative luminance values must be used when applying it.
alpha Is a keyword indicating that the associated mask image is an alpha mask.
initial Sets this property to its default value.
inherit If specified, the associated element takes the computed value of its parent element animation-delay property.
revert Reverts the cascaded value of the property from its current value to the value the property
revert-layer Rollback styles to the ones specified in previous cascade layers.
unset Resets a property to its inherited value if the property naturally inherits from its parent, and to its initial value if not.

Default CSS Property Values

selectors {
  mask-type: luminance;
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