    /**
     * @class Ext.layout.container.AbstractFit
     * @extends Ext.layout.container.Container
     * @private
     */
    Ext.define('Ext.layout.container.AbstractFit', {

        /* Begin Definitions */

        extend: 'Ext.layout.container.Container',

        /* End Definitions */

        itemCls: Ext.baseCSSPrefix + 'fit-item',
        targetCls: Ext.baseCSSPrefix + 'layout-fit',
        type: 'fit'
    });