ant-design/components/layout/demo/reponsive.md

order	title
7	响应式布局

参照 Bootstrap 的响应式设计，预设四个响应尺寸：xs sm md lg。

import { Row, Col } from 'antd';

ReactDOM.render(
  <Row>
    <Col xs={2} sm={4} md={6} lg={8} />
    <Col xs={20} sm={16} md={12} lg={8} />
    <Col xs={2} sm={4} md={6} lg={8} />
  </Row>
, mountNode);