This interface represents a CSS view. The getComputedStyle method provides a read only access to the computed values of an element. The expectation is that an instance of the ViewCSS interface can be obtained by using binding-specific casting methods on an instance of the AbstractView interface. Since a computed style is related to an Element node, if this element is removed from the document, the associated CSSStyleDeclaration and CSSValue related to this declaration are no longer valid.