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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.

As a presentation attribute, it also can be used as a property directly inside a CSS stylesheet, see css opacity for further information.

Usage context

Categories Presentation attribute
Value <opacity-value> | inherit
Animatable Yes
Normative document SVG 1.1 (2nd Edition)
<opacity-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.

Example

SVG

<svg viewBox="0 0 200 200" xmlns="http://www.w3.org/2000/svg">
  <circle cx="100" cy="100" r="100" />
</svg>
<svg viewBox="0 0 200 200" xmlns="http://www.w3.org/2000/svg">
  <circle cx="100" cy="100" r="100" opacity="0.25" />
</svg>

Result

Elements

The following elements can use the opacity attribute

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidEdge MobileFirefox for AndroidOpera for AndroidiOS SafariSamsung Internet
Basic supportChrome ? Edge ? Firefox ? IE ? Opera ? Safari ? WebView Android ? Chrome Android ? Edge Mobile ? Firefox Android ? Opera Android ? Safari iOS ? Samsung Internet Android ?

Legend

Compatibility unknown  
Compatibility unknown

See also

Document Tags and Contributors

Contributors to this page: connorshea, jalbertbowden, Jeremie
Last updated by: connorshea,