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CSSValue

Deprecated

Avoid using this feature in new projects. The DOM level 2 CSS object model was excluded from the later CSS object model (CSSOM) specification. This feature may be a candidate for removal from web standards or browsers.

Consider using the following features instead: CSS object model.

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Non-standard: This feature is not standardized. We do not recommend using non-standard features in production, as they have limited browser support, and may change or be removed. However, they can be a suitable alternative in specific cases where no standard option exists.

The CSSValue interface represents the current computed value of a CSS property.

Note: This interface was part of an attempt to create a typed CSS Object Model. This attempt has been abandoned, and most browsers do not implement it.

To achieve your purpose, you can use:

the untyped CSS Object Model, widely supported, or
the modern CSS Typed Object Model API, less supported and considered experimental.

Instance properties

CSSValue.cssText

A string representing the current value.

CSSValue.cssValueType Read only

An unsigned short representing a code defining the type of the value. Possible values are:

Constant	Description
`CSS_CUSTOM`	The value is a custom value.
`CSS_INHERIT`	The value is inherited and the `cssText` contains `"inherit"`.
`CSS_PRIMITIVE_VALUE`	The value is a primitive value and an instance of the `CSSPrimitiveValue` interface can be obtained by using binding-specific casting methods on this instance of the `CSSValue` interface.
`CSS_VALUE_LIST`	The value is a `CSSValue` list and an instance of the `CSSValueList` interface can be obtained by using binding-specific casting methods on this instance of the `CSSValue` interface.

Specifications

This feature was originally defined in the DOM Style Level 2 specification, but has been dropped from any standardization effort since then.

It has been superseded by a modern, but incompatible, CSS Typed Object Model API that is now on the standard track.

Browser compatibility

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This page was last modified on Aug 21, 2026 by MDN contributors.

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