flood-opacity
SVG Elements
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<feBlend><feColorMatrix><feComponentTransfer><feComposite><feConvolveMatrix><feDiffuseLighting><feDisplacementMap><feDistantLight><feFlood><feFuncA><feFuncB><feFuncG><feFuncR><feGaussianBlur><feImage><feMerge><feMergeNode><feMorphology><feOffset><fePointLight><feSpecularLighting><feSpotLight><feTile><feTurbulence><filter><font><font-face><font-face-format><font-face-name><font-face-src><font-face-uri><foreignObject>
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The flood-opacity attribute indicates the opacity value to use across the current filter primitive subregion.
Note: As a presentation attribute, flood-opacity can be used as a CSS property.
You can use this attribute with the following SVG elements:
Example
<svg viewBox="0 0 420 200" xmlns="http://www.w3.org/2000/svg">
<filter id="flood1">
<feFlood flood-color="seagreen" flood-opacity="1" x="0" y="0" width="200" height="200"/>
</filter>
<filter id="flood2">
<feFlood flood-color="seagreen" flood-opacity="0.3" x="0" y="0" width="200" height="200"/>
</filter>
<rect x="0" y="0" width="200" height="200" style="filter: url(#flood1);" />
<rect x="0" y="0" width="200" height="200" style="filter: url(#flood2); transform: translateX(220px);" />
</svg>
Usage notes
| Value | <alpha-value> |
|---|---|
| Initial value | 1 |
| Animatable | Yes |
<alpha-value>-
A number or percentage indicating the opacity value to use across the current filter primitive subregion. A number of
0or a percentage of0%represents a fully transparent color,1or100%represents a fully opaque color.
Specifications
| Specification | Status | Comment |
|---|---|---|
| Filter Effects Module Level 1 The definition of 'flood-opacity' in that specification. |
Working Draft | Aligned the value to the CSS <alpha-value> value. |
| Scalable Vector Graphics (SVG) 1.1 (Second Edition) The definition of 'flood-opacity' in that specification. |
Recommendation | Initial definition |
Browser compatibility
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