Web features explorer

overlay

Limited availability

The overlay CSS property, used as an allow-discrete CSS transition, prevents a top layer element, such as a popover or a <dialog>, from being removed from the top layer before it has finished animating. You can't set the value of the overlay property; only use it as transition property.

Browser support

  • Chrome 117 Released on 2023-09-12
  • Chrome Android 117 Released on 2023-09-12
  • Edge 117 Released on 2023-09-15
  • Firefox Not supported Position Bugs: 1841456
  • Firefox for Android Not supported Position Bugs: 1841456
  • Safari Not supported Position
  • Safari on iOS Not supported Position
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MDN documentation

Specifications

Usage (according to Chrome Platform Status)

~0.125% of page loads. More data at chromestatus.com.

Web Platform Tests (WPT)

View the latest WPT test results for this feature

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