CSS offset-anchor Property Reference

The CSS offset-anchor property is a standard property in Motion Path. Review its formal syntax, computed behavior, and practical declarations.

Updated 2026-08-12

offset-anchor overview

The CSS offset-anchor property is a standard property in Motion Path. Review its formal syntax, computed behavior, and practical declarations.

The property is not inherited by default. Use an explicit global keyword when inheritance is intended.

Syntax and formal definition

offset-anchor formal syntax

Field	Value
Formal syntax	auto \| <position>
Initial value	auto
Applies to	transformableElements
Inherited	No
Percentages	relativeToWidthAndHeight
Computed value	forLengthAbsoluteValueOtherwisePercentage
Animation type	position
Media	visual
Specification group	Motion Path
Status	Standard

Practical examples

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

offset-anchor live example

CSS

.reset-example {
  offset-anchor: initial;
}

.inherit-example {
  offset-anchor: inherit;
}

@supports (offset-anchor: initial) {
  .supported {
    offset-anchor: initial;
  }
}