    /**
     * @class Ext.fx.target.CompositeElementCSS
     * @extends Ext.fx.target.CompositeElement
     *
     * This class represents a animation target for a {@link Ext.CompositeElement}, where the
     * constituent elements support CSS based animation. It allows each {@link Ext.core.Element} in
     * the group to be animated as a whole. In general this class will not be created directly,
     * the {@link Ext.CompositeElement} will be passed to the animation and the appropriate target
     * will be created.
     */
    Ext.define('Ext.fx.target.CompositeElementCSS', {

        /* Begin Definitions */

        extend: 'Ext.fx.target.CompositeElement',

        requires: ['Ext.fx.target.ElementCSS'],

        /* End Definitions */
        setAttr: function() {
            return Ext.fx.target.ElementCSS.prototype.setAttr.apply(this, arguments);
        }
    });