CSS all Property Reference

The CSS all property is a standard property in CSS Cascading and Inheritance. Review its formal syntax, computed behavior, and practical declarations.

Updated 2026-08-12

all overview

The CSS all property is a standard property in CSS Cascading and Inheritance. 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

all formal syntax

Field	Value
Formal syntax	initial \| inherit \| unset \| revert \| revert-layer
Initial value	noPracticalInitialValue
Applies to	allElements
Inherited	No
Percentages	no
Computed value	asSpecifiedAppliesToEachProperty
Animation type	eachOfShorthandPropertiesExceptUnicodeBiDiAndDirection
Media	noPracticalMedia
Specification group	CSS Cascading and Inheritance
Status	Standard

Practical examples

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

all live example

CSS

.reset-example {
  all: initial;
}

.inherit-example {
  all: inherit;
}

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