CSS interactivity Property Reference

The CSS interactivity property is a standard property in CSS Basic User Interface. Review its formal syntax, computed behavior, and practical declarations.

Updated 2026-08-12

interactivity overview

The CSS interactivity property is a standard property in CSS Basic User Interface. 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

interactivity formal syntax

Field	Value
Formal syntax	auto \| inert
Initial value	auto
Applies to	allElements
Inherited	Yes
Percentages	no
Computed value	asSpecified
Animation type	discrete
Media	visual
Specification group	CSS Basic User Interface
Status	Standard

Practical examples

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

interactivity live example

CSS

.reset-example {
  interactivity: initial;
}

.inherit-example {
  interactivity: inherit;
}

@supports (interactivity: initial) {
  .supported {
    interactivity: initial;
  }
}