com.google.gwt.resources.client

## Annotation Type CssResource.Shared

-     @Documented
      @Retention(value=RUNTIME)
      @Target(value=TYPE)
      public static @interface CssResource.Shared

  Indicates that the String accessor methods defined in a CssResource will return the same values across all implementations of that type.

  This is an example of "stateful" class selectors being used:

      @Shared
       interface FocusCss extends CssResource {
         String focused();
         String unfocused();
       }

       interface PanelCss extends CssResource, FocusCss {
         String widget();
       }

       interface InputCss extends CssResource, FocusCss {
         String widget();
       }

       input.css:
       *.focused .widget {border: thin solid blue;}

       Application.java:
       myPanel.add(myInputWidget);
       myPanel.addStyleName(instanceOfPanelCss.focused());

  Because the `FocusCss` interface is tagged with `@Shared`, the `focused()` method on the instance of `PanelCss` will match the `.focused` parent selector in `input.css`.

  The effect of inheriting an `Shared` interface can be replicated by use use of the `CssResource.Import` annotation (e.g. `.FocusCss-focused .widget`), however the use of state-bearing descendant selectors is common enough to warrant an easier use-case.