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:
<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>
| 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 0 or a percentage of 0% represents a fully transparent color, 1 or 100% represents a fully opaque color.
| Specification |
|---|
| Filter Effects Module Level 1 # FloodOpacityProperty |
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
flood-opacity |
No | No | No | No | No | No | No | No | No | No | No | No |
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https://developer.mozilla.org/en-US/docs/Web/SVG/Attribute/flood-opacity