> Markdown version of [Styling](https://vaadin.com/docs/next/components/app-layout/styling). Section index: [llms.txt](https://vaadin.com/docs/next/components/llms.txt)

# App Layout Styling

## <a id="style-variants"></a>Style Variants

The following [Button variants](https://vaadin.com/docs/next/components/button/styling.md#style-variants) are supported by the Drawer Toggle:

| Variant    | Description                                   | Supported by |
| ---------- | --------------------------------------------- | ------------ |
| `primary`  | Used to make the drawer toggle more prominent | Aura         |
| `tertiary` | Used to make the drawer toggle less prominent | Aura         |

## <a id="style-properties"></a>Style Properties

The following style properties can be used in CSS stylesheets to customize the appearance of this component.

To apply values to these properties globally in your application UI, place them in a CSS block using the `html {…​}` selector. See [Component Style Properties](https://vaadin.com/docs/next/styling/styling-components.md#component-style-properties) for more information on style properties.

### <a id="app-layout-properties"></a>App Layout Properties

| Property                                          | Supported by |
| ------------------------------------------------- | ------------ |
| `--vaadin-app-layout-drawer-background`           | Aura         |
| `--vaadin-app-layout-drawer-width`                | Aura, Lumo   |
| `--vaadin-app-layout-navbar-background`           | Aura         |
| `--vaadin-app-layout-navbar-gap`                  | Aura         |
| `--vaadin-app-layout-navbar-padding-bottom`       | Aura         |
| `--vaadin-app-layout-navbar-padding-inline-end`   | Aura         |
| `--vaadin-app-layout-navbar-padding-inline-start` | Aura         |
| `--vaadin-app-layout-navbar-padding-top`          | Aura         |
| `--vaadin-app-layout-transition-duration`         | Aura, Lumo   |
| `--vaadin-overlay-backdrop-background`            | Aura         |
| `--vaadin-overlay-shadow`                         | Aura         |

### <a id="drawer-toggle-properties"></a>Drawer Toggle Properties

| Property                        | Supported by |
| ------------------------------- | ------------ |
| `--vaadin-button-background`    | Aura, Lumo   |
| `--vaadin-button-border`        | Lumo         |
| `--vaadin-button-border-color`  | Aura         |
| `--vaadin-button-border-radius` | Aura, Lumo   |
| `--vaadin-button-border-width`  | Aura         |
| `--vaadin-button-font-size`     | Aura, Lumo   |
| `--vaadin-button-height`        | Aura, Lumo   |
| `--vaadin-button-line-height`   | Aura         |
| `--vaadin-button-margin`        | Aura, Lumo   |
| `--vaadin-button-min-width`     | Lumo         |
| `--vaadin-button-padding`       | Aura, Lumo   |
| `--vaadin-button-text-color`    | Aura, Lumo   |
| `--vaadin-icon-size`            | Aura         |

## <a id="css-selectors"></a>CSS Selectors

The following CSS selectors can be used in stylesheets to target the various parts and states of the component. See the [Styling documentation](https://vaadin.com/docs/next/styling.md) for more details on how to style components.

> **Important: Not for Shadow DOM**
>
> These selectors should be used in `styles.css` or another stylesheet loaded with the `@StyleSheet` annotation or the `@import` CSS rule. **They do not work in the shadow DOM of Vaadin components**, such as in stylesheets in the `components` sub-folder or loaded with the `@CssImport` annotation’s `themeFor` property.

---

- Root element

  `vaadin-app-layout`

### <a id="parts"></a>Parts

- Navbar

  `vaadin-app-layout::part(navbar)`

- Top navbar

  `vaadin-app-layout::part(navbar-top)`

- Bottom "touch optimized" navbar

  `vaadin-app-layout::part(navbar-bottom)`

- Modality curtain (backdrop)

  `vaadin-app-layout::part(backdrop)`

- Content area

  `vaadin-app-layout::part(content)`

- Drawer

  `vaadin-app-layout::part(drawer)`

### <a id="states"></a>States

- Layout with navbar content

  `vaadin-app-layout[has-navbar]`

- Layout with drawer content

  `vaadin-app-layout[has-drawer]`

- Navbar on top of drawer

  `vaadin-app-layout[primary-section="navbar"]`

- Navbar next to drawer

  `vaadin-app-layout[primary-section="drawer"]`

- Drawer opened

  `vaadin-app-layout[drawer-opened]`

- Overlay drawer (small screen) mode

  `vaadin-app-layout[overlay]`

### <a id="drawer-toggle"></a>Drawer Toggle

- Root element

  `vaadin-drawer-toggle`

- Toggle icon wrapper

  `vaadin-drawer-toggle::part(icon)`

- Toggle icon

  `vaadin-drawer-toggle::part(icon)::before`

- Focused

  `vaadin-drawer-toggle[focused]`

- Keyboard focused

  `vaadin-drawer-toggle[focus-ring]`

- Pressed

  `vaadin-drawer-toggle[active]`