ant-design/components/tooltip/demo/arrow-point-at-center.md

order	title
2	[{zh-CN 箭头指向} {en-US Arrow pointing at the center}]

zh-CN

设置了 arrowPointAtCenter 后，箭头将指向目标元素的中心。

en-US

By specifying arrowPointAtCenter prop, the arrow will point to the center of the target element.

import { Tooltip, Button } from 'antd';

ReactDOM.render(
  <div>
    <Tooltip placement="topLeft" title="Prompt Text">
      <Button>Align edge / 边缘对齐</Button>
    </Tooltip>
    <Tooltip placement="topLeft" title="Prompt Text" arrowPointAtCenter>
      <Button>Arrow points to center / 箭头指向中心</Button>
    </Tooltip>
  </div>,
  mountNode);