If you place anything within square brackets, it will be turned into a [dynamic route](https://next.router.vuejs.org/guide/essentials/dynamic-matching.html) parameter. You can mix and match multiple parameters and even non-dynamic text within a file name or directory.
Nuxt provides a customizable layouts framework you can use throughout your application, ideal for extracting common UI or code patterns into reusable layout components.
Page layouts are placed in the `layouts/` directory and will be automatically loaded via asynchronous import when used. If you create a `layouts/default.vue` this will be used for all pages in your app. Other layouts are used by setting a `layout` property as part of your component options.
If you have only single layout for application, you can alternatively use (app entry)[/app].
### Example: a custom layout
```bash
-| layouts/
---| custom.vue
```
In your layout files, you'll need to use `<slot />` to define where the page content of your layout will be loaded. For example:
```vue
<template>
<div>
Some shared layout content:
<slot/>
</div>
</template>
```
Given the example above, you can use a custom layout like this:
```vue
<script>
export default {
layout: "custom",
};
</script>
```
### Example: using with slots
You can also take full control (for example, with slots) by using the `<NuxtLayout>` component (which is globally available throughout your application) and set `layout: false` in your component options.
```vue
<template>
<NuxtLayoutname="custom">
<template#header> Some header template content. </template>
