sourcecode/front/src/layouts/AnimationLayout/index.js

import React from 'react';
import ReactCSSTransitionGroup from 'react-addons-css-transition-group';
import './index.less';

const App = ({ children, location }) => (
  <ReactCSSTransitionGroup
    id="app-animation"
    component="div"
    transitionName="app-animation"
    transitionEnterTimeout={200}
    transitionLeaveTimeout={200}
  >
    {React.cloneElement(children, {
      key: location.pathname,
    })}
  </ReactCSSTransitionGroup>
);

export default App;