import React from 'react'; import Dropdown from 'rc-dropdown'; export default React.createClass({ getDefaultProps() { return { transitionName: 'slide-up', prefixCls: 'ant-dropdown', }; }, render() { const { overlay, ...otherProps } = this.props; const menu = React.cloneElement(overlay, { openTransitionName: 'zoom-big', }); return ( ); } });