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CSS typed object model

Limited availability

The CSSStyleValue and its subclasses represent CSS values as distinct types instead of only strings. Also known as typed OM.

Browser support

  • Chrome 66 Released on 2018-04-17
  • Chrome Android 66 Released on 2018-04-17
  • Edge 79 Released on 2020-01-15
  • Firefox Not supported Position: positive Bugs: 1273706 1278697
  • Firefox for Android Not supported Position: positive
  • Safari 16.4 Released on 2023-03-27
  • Safari on iOS 16.4 Released on 2023-03-27

Baseline availability blocked since March 2023 by Firefox (40 months)

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MDN documentation

Specifications

Web Platform Tests (WPT)

View the latest WPT test results for this feature

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