ant-design/components/layout/demo/fixed.md

order	iframe	title
6	true	[{zh-CN 固定头部} {en-US Fixed Header}]

zh-CN

一般用于固定顶部导航，方便页面切换。

en-US

Fixed Header is generally used to fix the top navigation to facilitate page switching.

import { Layout, Menu, Breadcrumb } from 'antd';
const { Header, Content, Footer } = Layout;

ReactDOM.render(
  <Layout>
    <Header className="header">
      <div className="logo" />
      <Menu
        theme="dark"
        mode="horizontal"
        defaultSelectedKeys={['2']}
        style={{ lineHeight: '64px' }}
      >
        <Menu.Item key="1">nav 1</Menu.Item>
        <Menu.Item key="2">nav 2</Menu.Item>
        <Menu.Item key="3">nav 3</Menu.Item>
      </Menu>
    </Header>
    <Content className="content">
      <Breadcrumb style={{ margin: '12px 0' }}>
        <Breadcrumb.Item>Home</Breadcrumb.Item>
        <Breadcrumb.Item>List</Breadcrumb.Item>
        <Breadcrumb.Item>App</Breadcrumb.Item>
      </Breadcrumb>
      <div style={{ background: '#fff', padding: 24, minHeight: 280 }}>Content</div>
    </Content>
    <Footer style={{ textAlign: 'center' }}>
      Ant Design ©2016 Created by Ant UED
    </Footer>
  </Layout>
, mountNode);

#components-layout-demo-fixed .logo {
  width: 120px;
  height: 31px;
  background: #333;
  border-radius: 6px;
  margin: 16px 24px 16px 0;
  float: left;
}
#components-layout-demo-fixed .header {
  position: fixed;
  width: 100%;
}
#components-layout-demo-fixed .content {
  padding: 0 50px;
  margin-top: 64px;
}