Web features explorer

lh unit

Widely Available (since 2026-05-21)

The lh CSS length unit corresponds to the requested line height, the computed value of the line-height property. Some lines may be higher than this based on their content.

Browser support

  • Chrome 109 Released on 2023-01-10
  • Chrome Android 109 Released on 2023-01-10
  • Edge 109 Released on 2023-01-12
  • Firefox 120 Released on 2023-11-21
  • Firefox for Android 120 Released on 2023-11-21
  • Safari 16.4 Released on 2023-03-27
  • Safari on iOS 16.4 Released on 2023-03-27

MDN documentation

Specifications

Usage (according to Chrome Platform Status)

~1.159% 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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