content/files/en-us/web/api/css/index.md at 6f9362241654a8e161186526e3e7a532702f2314 · mdn/content

The CSS interface of the CSS Object Model (CSSOM) groups useful CSS-related static methods.

No objects with this interface are implemented: it contains only static methods and is therefore a utilitarian interface.

Static properties

{{DOMxRef("CSS/highlights_static", "CSS.highlights")}}
- : Provides access to the HighlightRegistry used to style arbitrary text ranges using the {{domxref("css_custom_highlight_api", "CSS Custom Highlight API", "", "nocode")}}.
{{DOMxRef("CSS/paintWorklet_static", "CSS.paintWorklet")}} {{Experimental_Inline}} {{SecureContext_Inline}}
- : Provides access to the Worklet responsible for all the classes related to painting.

The CSS interface is a utility interface and no object of this type can be created: only static properties are defined on it.

No inherited static methods.

{{DOMxRef("CSS/registerProperty_static", "CSS.registerProperty()")}}
- : Registers custom properties, allowing for property type checking, default values, and properties that do or do not inherit their value.
{{DOMxRef("CSS/supports_static", "CSS.supports()")}}
- : Returns a boolean value indicating if the pair property-value, or the condition, given in parameter is supported.
{{DOMxRef("CSS/escape_static", "CSS.escape()")}}
- : Can be used to escape a string mostly for use as part of a CSS selector.
CSS factory functions
- : Can be used to return a new CSSUnitValue with a value of the parameter number of the units of the name of the factory function method used.
```
CSS.em(3); // CSSUnitValue {value: 3, unit: "em"}
```

The CSS interface is a utility interface and no object of this type can be created: only static methods are defined on it.