ant-design/components/button/demo/block.md

order	title
9	zh-CN en-US block 按钮 block Button

zh-CN

block属性将使按钮适合其父宽度。

en-US

block property will make the button fit to its parent width.

import { Button } from 'antd';

ReactDOM.render(
  <div>
    <Button type="primary" block>Primary</Button>
    <Button block>Default</Button>
    <Button type="dashed" block>Dashed</Button>
    <Button type="danger" block>danger</Button>
  </div>,
  mountNode
);