CSS line-height-step Property Reference

The CSS line-height-step property is a experimental property in CSS Rhythmic Sizing. Review its formal syntax, computed behavior, and practical declarations.

Updated 2026-08-12

line-height-step overview

The CSS line-height-step property is a experimental property in CSS Rhythmic Sizing. Review its formal syntax, computed behavior, and practical declarations.

The computed value normally inherits from the parent element when no declaration wins the cascade.

Syntax and formal definition

line-height-step formal syntax

Field	Value
Formal syntax	<length>
Initial value	0
Applies to	blockContainers
Inherited	Yes
Percentages	no
Computed value	absoluteLength
Animation type	byComputedValueType
Media	visual
Specification group	CSS Rhythmic Sizing
Status	Experimental

Practical examples

These declarations demonstrate valid ways to set line-height-step. The initial and inherit global keywords remain available even when a property-specific value is preferable.

line-height-step live example

CSS

.reset-example {
  line-height-step: initial;
}

.inherit-example {
  line-height-step: inherit;
}

@supports (line-height-step: initial) {
  .supported {
    line-height-step: initial;
  }
}