CSS backdrop-filter Property Reference

The CSS backdrop-filter property is a standard property in Filter Effects. Review its formal syntax, computed behavior, and practical declarations.

Updated 2026-08-12

backdrop-filter overview

The CSS backdrop-filter property is a standard property in Filter Effects. 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

backdrop-filter formal syntax

Field	Value
Formal syntax	none \| <filter-value-list>
Initial value	none
Applies to	allElementsSVGContainerElements
Inherited	No
Percentages	no
Computed value	asSpecified
Animation type	filterList
Media	visual
Specification group	Filter Effects
Status	Standard

Practical examples

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

backdrop-filter live example

CSS

.reset-example {
  backdrop-filter: initial;
}

.inherit-example {
  backdrop-filter: inherit;
}

@supports (backdrop-filter: initial) {
  .supported {
    backdrop-filter: initial;
  }
}