text: /**
   * @fileoverview Provide zz.ui.mdl.button.enums.CSS.
   * @license Apache-2.0
   * @author author popkov.aleksander@gmail.com (Alexander Popkov)
   */
  
  goog.provide( 'zz.ui.mdl.button.enums.CSS' );
  
  
  /**
   * Store strings for class names defined by this component that are used in JavaScript. This allows us to simply change
   * it in one place should we decide to modify at a later date.
   * @enum {string}
   */
  zz.ui.mdl.button.enums.CSS = {
  
      ROOT_ELEMENT: goog.getCssName( 'mdl-button' ),
      RIPPLE_EFFECT: goog.getCssName( 'mdl-js-ripple-effect' ),
      RIPPLE_CONTAINER: goog.getCssName( 'mdl-button__ripple-container' ),
      RIPPLE: goog.getCssName( 'mdl-ripple' )
  };