mask-mode
The mask-mode CSS property sets whether the mask reference defined by {{cssxref("mask-image")}} is treated as a luminance or alpha mask.
Syntax
/* Keyword values */
mask-mode: alpha;
mask-mode: luminance;
mask-mode: match-source;
/* Multiple values */
mask-mode: alpha, match-source;
/* Global values */
mask-mode: inherit;
mask-mode: initial;
mask-mode: revert;
mask-mode: revert-layer;
mask-mode: unset;
The mask-mode property is specified as one or more of the keyword values listed below, separated by commas.
Values
-
alpha- : This keyword indicates that the transparency (alpha channel) values of the mask layer image should be used as the mask values.
-
luminance- : This keyword indicates that the luminance values of the mask layer image should be used as the mask values.
-
match-source-
: If the {{cssxref("mask-image")}} property is of type
<mask-source>, the luminance values of the mask layer image should be used as the mask values.If it is of type {{cssxref("<image>")}}, the alpha values of the mask layer image should be used as the mask values.
-
Formal definition
Formal syntax
Examples
Using alpha mask mode
{{EmbedGHLiveSample("css-examples/masking/mask-mode.html", '100%', 760)}}