CSS unicode-bidi Property Reference

The CSS unicode-bidi property is a standard property in CSS Writing Modes. Review its formal syntax, computed behavior, and practical declarations.

Updated 2026-08-12

unicode-bidi overview

The CSS unicode-bidi property is a standard property in CSS Writing Modes. 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

unicode-bidi formal syntax

Field	Value
Formal syntax	normal \| embed \| isolate \| bidi-override \| isolate-override \| plaintext
Initial value	normal
Applies to	allElementsSomeValuesNoEffectOnNonInlineElements
Inherited	No
Percentages	no
Computed value	asSpecified
Animation type	notAnimatable
Media	visual
Specification group	CSS Writing Modes
Status	Standard

Practical examples

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

unicode-bidi live example

CSS

.reset-example {
  unicode-bidi: initial;
}

.inherit-example {
  unicode-bidi: inherit;
}

@supports (unicode-bidi: initial) {
  .supported {
    unicode-bidi: initial;
  }
}