mask-mode - CSS: Cascading Style Sheets | MDN
source link: https://developer.mozilla.org/en-US/docs/Web/CSS/mask-mode
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mask-mode
The mask-mode CSS property sets whether the mask reference defined by mask-image is treated as a luminance or alpha mask.
/* 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;
Syntax
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 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 <image>, the alpha values of the mask layer image should be used as the mask values.
Formal definition
| Initial value | match-source |
|---|---|
| Applies to | all elements; In SVG, it applies to container elements excluding the defs element and all graphics elements |
| Inherited | no |
| Computed value | as specified |
| Animation type | discrete |
Formal syntax
Examples
Using alpha mask mode
Specifications
| Specification |
|---|
| CSS Masking Module Level 1 # the-mask-mode |
Browser compatibility
Report problems with this compatibility data on GitHub
| desktop | mobile | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Chrome | Firefox | Opera | Safari | Chrome Android | Firefox for Android | Opera Android | Safari on iOS | Samsung Internet | WebView Android | ||
mask-mode |
Legend
Tip: you can click/tap on a cell for more information.
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