flood-opacity
Baseline Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
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
html
<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
0
or a percentage of0%
represents a fully transparent color,1
or100%
represents a fully opaque color.
Specifications
Specification |
---|
Filter Effects Module Level 1 # FloodOpacityProperty |
Browser compatibility
BCD tables only load in the browser