ant-design/components/layout/demo/top.tsx

import React from 'react';
import { Breadcrumb, Layout, Menu, theme } from 'antd';

const { Header, Content, Footer } = Layout;

const App: React.FC = () => {
  const {
    token: { colorBgContainer },
  } = theme.useToken();

  return (
    <Layout className="layout">
      <Header>
        <div className="logo" />
        <Menu
          theme="dark"
          mode="horizontal"
          defaultSelectedKeys={['2']}
          items={new Array(15).fill(null).map((_, index) => {
            const key = index + 1;
            return {
              key,
              label: `nav ${key}`,
            };
          })}
        />
      </Header>
      <Content style={{ padding: '0 50px' }}>
        <Breadcrumb style={{ margin: '16px 0' }}>
          <Breadcrumb.Item>Home</Breadcrumb.Item>
          <Breadcrumb.Item>List</Breadcrumb.Item>
          <Breadcrumb.Item>App</Breadcrumb.Item>
        </Breadcrumb>
        <div className="site-layout-content" style={{ background: colorBgContainer }}>
          Content
        </div>
      </Content>
      <Footer style={{ textAlign: 'center' }}>Ant Design ©2018 Created by Ant UED</Footer>
    </Layout>
  );
};

export default App;