ant-design/components/popover/demo/placement.tsx

import React from 'react';
import { Button, Popover } from 'antd';

const text = <span>Title</span>;

const content = (
  <div>
    <p>Content</p>
    <p>Content</p>
  </div>
);

const buttonWidth = 70;

const App: React.FC = () => (
  <div>
    <div style={{ marginLeft: buttonWidth, whiteSpace: 'nowrap' }}>
      <Popover placement="topLeft" title={text} content={content} trigger="click">
        <Button>TL</Button>
      </Popover>
      <Popover placement="top" title={text} content={content} trigger="click">
        <Button>Top</Button>
      </Popover>
      <Popover placement="topRight" title={text} content={content} trigger="click">
        <Button>TR</Button>
      </Popover>
    </div>
    <div style={{ width: buttonWidth, float: 'left' }}>
      <Popover placement="leftTop" title={text} content={content} trigger="click">
        <Button>LT</Button>
      </Popover>
      <Popover placement="left" title={text} content={content} trigger="click">
        <Button>Left</Button>
      </Popover>
      <Popover placement="leftBottom" title={text} content={content} trigger="click">
        <Button>LB</Button>
      </Popover>
    </div>
    <div style={{ width: buttonWidth, marginLeft: buttonWidth * 4 + 24 }}>
      <Popover placement="rightTop" title={text} content={content} trigger="click">
        <Button>RT</Button>
      </Popover>
      <Popover placement="right" title={text} content={content} trigger="click">
        <Button>Right</Button>
      </Popover>
      <Popover placement="rightBottom" title={text} content={content} trigger="click">
        <Button>RB</Button>
      </Popover>
    </div>
    <div style={{ marginLeft: buttonWidth, clear: 'both', whiteSpace: 'nowrap' }}>
      <Popover placement="bottomLeft" title={text} content={content} trigger="click">
        <Button>BL</Button>
      </Popover>
      <Popover placement="bottom" title={text} content={content} trigger="click">
        <Button>Bottom</Button>
      </Popover>
      <Popover placement="bottomRight" title={text} content={content} trigger="click">
        <Button>BR</Button>
      </Popover>
    </div>
  </div>
);

export default App;