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random()

Limited availability

The random() CSS function chooses a random numeric value within a specified range. This allows for dynamic, randomized styling using CSS.

Browser support

  • Chrome Not supported
  • Chrome Android Not supported
  • Edge Not supported
  • Firefox Not supported Bugs: 1836588
  • Firefox for Android Not supported
  • Safari 26.2 Released on 2025-12-12
  • Safari on iOS 26.2 Released on 2025-12-12
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MDN documentation

Specifications

Web Platform Tests (WPT)

View the latest WPT test results for this feature

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