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Gap decorations

Limited availability

The column-rule and row-rule CSS properties display decorative lines between columns and rows of a flex, grid, or multi-column layout. The rule-break, rule-outset, and rule-paint-order properties control the appearance of these lines.

Browser support

  • Chrome 149 Released on 2026-06-02
  • Chrome Android 149 Released on 2026-06-02
  • Edge 149 Released on 2026-06-04
  • Firefox Not supported Position: positive Bugs: 1963897
  • Firefox for Android Not supported Position: positive
  • Safari Not supported Position: support
  • Safari on iOS Not supported Position: support
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MDN documentation

Specifications

Usage (according to Chrome Platform Status)

~0.090% of page loads. More data at chromestatus.com.

Web Platform Tests (WPT)

View the latest WPT test results for this feature

Surveys

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