code: private void addCSSFromAnnotation(final Parent parent) {
  		if (annotation != null && annotation.css().length > 0) {
  			for (final String cssFile : annotation.css()) {
  				final URL uri = getClass().getResource(cssFile);
  				if (uri != null) {
  					final String uriToCss = uri.toExternalForm();
  					parent.getStylesheets().add(uriToCss);
  					LOGGER.debug("css file added to parent: {}", cssFile);
  				} else {
  					LOGGER.warn("referenced {} css file could not be located", cssFile);
  				}
  			}
  		}
  	}
docs: Adds the CSS from annotation to parent.
  
  @param parent
  the parent