ant-design/components/tabs/demo/custom-tab-bar.tsx

import React from 'react';
import type { TabsProps } from 'antd';
import { Tabs } from 'antd';
import { Sticky, StickyContainer } from 'react-sticky';

const renderTabBar: TabsProps['renderTabBar'] = (props, DefaultTabBar) => (
  <Sticky bottomOffset={80}>
    {({ style }) => (
      <DefaultTabBar {...props} className="site-custom-tab-bar" style={{ ...style }} />
    )}
  </Sticky>
);

const items = new Array(3).fill(null).map((_, i) => {
  const id = String(i + 1);
  return {
    label: `Tab ${id}`,
    key: id,
    children: `Content of Tab Pane ${id}`,
    style: i === 0 ? { height: 200 } : undefined,
  };
});

const App: React.FC = () => (
  <StickyContainer>
    <Tabs defaultActiveKey="1" renderTabBar={renderTabBar} items={items} />
  </StickyContainer>
);

export default App;