mask-mode
Quick Summary for mask-mode
mask-mode CSS property sets whether the mask reference defined by mask-image is treated as a luminance or alpha mask.
Code Usage for mask-mode
<pre class="brush: css notranslate"><code><span class="token comment">/ Keyword values /</span> <span class="token property">mask-mode</span><span class="token punctuation">:</span> alpha<span class="token punctuation">;</span> <span class="token property">mask-mode</span><span class="token punctuation">:</span> luminance<span class="token punctuation">;</span> <span class="token property">mask-mode</span><span class="token punctuation">:</span> match-source<span class="token punctuation">;</span> <span class="token comment">/ Multiple values /</span> <span class="token property">mask-mode</span><span class="token punctuation">:</span> alpha<span class="token punctuation">,</span> match-source<span class="token punctuation">;</span> <span class="token comment">/ Global values /</span> <span class="token property">mask-mode</span><span class="token punctuation">:</span> inherit<span class="token punctuation">;</span> <span class="token property">mask-mode</span><span class="token punctuation">:</span> initial<span class="token punctuation">;</span> <span class="token property">mask-mode</span><span class="token punctuation">:</span> revert<span class="token punctuation">;</span> <span class="token property">mask-mode</span><span class="token punctuation">:</span> unset<span class="token punctuation">;</span> </code></pre>
More Details for mask-mode
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: 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
<masking-mode>#where
<masking-mode> = alpha | luminance | match-source
Examples
Using alpha mask mode
Specifications
| Specification |
|---|
| CSS Masking Module Level 1 # the-mask-mode |
See also
Clipping and Masking in CSSLast modified: Aug 12, 2021, by MDN contributors
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