You have to make sure to add the `<nuxt-container>` and `<nuxt>` components when extending the app.
It is important that the code you add stays inside `<nuxt-container>`.
Example:
```html
<template>
<nuxt-container>
<div>My navigation bar here</div>
<nuxt/>
</nuxt-container>
</template>
```
## Demo
```bash
npm install
npm start
```
Go to [http://localhost:3000](http://localhost:3000) and navigate trough the app. Notice how the logo at the top right stays between the pages, even on the error page: [http://localhost:3000/404](http://localhost:3000/404)