# padding-inline-end

> Applies `padding-inline-end` — the trailing inline edge, which is the right edge in `ltr` and the left edge in `rtl`.

```ts
import { pie } from "@sdxc/u/size";
```

Applies `padding-inline-end` — the trailing inline edge, which is the
right edge in `ltr` and the left edge in `rtl`.

## Quick reference

Every documented call, beside the CSS it emits.

| Call | CSS |
| --- | --- |
| `u.pie(4)` | `css({ paddingInlineEnd: "calc(var(--ui-spacing, 0.25rem) * 4)" })` |

## Examples

### Basic example

Use `pie(n)` to pad the inline-end edge of an element, its right in left-to-right text:

```tsx
<div mix={[pie(12), ...]}>
	<div mix={[...]}>pie(12)</div>
</div>
```

### Writing direction

`pie()` follows the writing direction: on the right in left-to-right text and on the left in right-to-left text:

```tsx
<div mix={[...]}>
	<div dir="ltr" mix={[pie(12), ...]}>
		<div mix={[...]}>ltr</div>
	</div>
	<div dir="rtl" mix={[pie(12), ...]}>
		<div mix={[...]}>rtl</div>
	</div>
</div>
```

## Using a custom value

Every scale argument also takes a raw CSS value, which passes through untouched.

```ts
u.pie("2.75rem")
```

## Applying on a state

Wrap the call in a state utility to scope it to one selector.

```ts
u.hover(u.pie(4))
```

## Responsive design

Wrap the call in a container query to scope it to one width.

```ts
u.at("md", u.pie(4))
```

## Customizing your theme

### Customizing spacing

Every numeric step multiplies `--ui-spacing`, so redefining it rescales every spacing and sizing utility at once:

```css
:root {
	--ui-spacing: 0.25rem;
}
```

Every call that names the step now reads the new value:

```ts
pie(4)
```

## Signature

```ts
u.pie(value: SpacingValue)
```