The opacity attribute specifies the transparency of an object or of a group of objects, that is, the degree to which the background behind the element is overlaid.
Note: As a presentation attribute, opacity can be used as a CSS property. See the CSS opacity property for more information.
You can use this attribute with the following SVG elements:
<svg viewBox="0 0 200 100" xmlns="http://www.w3.org/2000/svg"> <defs> <linearGradient id="gradient" x1="0%" y1="0%" x2="0" y2="100%"> <stop offset="0%" style="stop-color:skyblue;" /> <stop offset="100%" style="stop-color:seagreen;" /> </linearGradient> </defs> <rect x="0" y="0" width="100%" height="100%" fill="url(#gradient)" /> <circle cx="50" cy="50" r="40" fill="black" /> <circle cx="150" cy="50" r="40" fill="black" opacity="0.3" /> </svg>
| Default value | 1 |
|---|---|
| Value | <alpha-value> |
| Animatable | Yes |
<alpha-value>The uniform opacity setting to be applied across an entire object, as a <number>. Any values outside the range 0.0 (fully transparent) to 1.0 (fully opaque) will be clamped to this range.
| Specification |
|---|
| CSS Color Module Level 4 # transparency |
| Scalable Vector Graphics (SVG) 2 # ObjectAndGroupOpacityProperties |
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
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/opacity