mask

The mask attribute is a presentation attribute mainly used to bind a given <mask> element with the element the attribute belongs to.

Note: As a presentation attribute mask can be used as a CSS property.

You can use this attribute with the following SVG elements:

Example

html
<svg viewBox="0 0 200 100" xmlns="http://www.w3.org/2000/svg">
  <mask id="myMask" maskContentUnits="objectBoundingBox">
    <rect fill="white" x="0" y="0" width="100%" height="100%" />
    <polygon
      fill="black"
      points="0.5,0.2 0.68,0.74 0.21,0.41 0.79,0.41 0.32,0.74" />
  </mask>

  <!--
  Punch a hole in a shape of a star inside the red circle,
  revealing the yellow circle underneath
  -->
  <circle cx="50" cy="50" r="20" fill="yellow" />
  <circle cx="50" cy="50" r="45" fill="red" mask="url(#myMask)" />
</svg>

Since SVG2, the mask attribute is defined as a CSS property and is a shorthand for many other properties: mask-image, mask-mode, mask-repeat, mask-position, mask-clip, mask-origin, mask-size, and mask-composite.

Usage notes

Value See the CSS property mask
Default value none
Animatable Yes

Specifications

Specification
CSS Masking Module Level 1
# the-mask

Browser compatibility

Report problems with this compatibility data on GitHub
desktopmobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
mask

Legend

Tip: you can click/tap on a cell for more information.

Full support
Full support
Partial support
Partial support
See implementation notes.
Requires a vendor prefix or different name for use.
Has more compatibility info.

See also