# overflow-block

> Applies `overflow-block`, independently of the inline axis.

```ts
import { overflowBlock } from "@sdxc/u/overflow";
```

Applies `overflow-block`, independently of the inline axis. The block axis
follows writing mode and direction, so the utility stays correct under RTL
and vertical writing modes.

## Quick reference

Every documented call, beside the CSS it emits.

| Call | CSS |
| --- | --- |
| `u.overflowBlock("auto")` | `css({ overflowBlock: "auto" })` |

## Examples

### Basic example

Use `overflowBlock("auto")` to let an element scroll along the block axis, vertically in a horizontal writing mode, when its content does not fit. Scroll the box:

```tsx
<div mix={[overflowBlock("auto"), bs(24), is(72), maxIs("100%"), ...]}>
	<p mix={[...]}>
		This paragraph is taller than its box, so the last lines of it do not fit. Scroll to read
		the rest, while the page around the box stays exactly where it is.
	</p>
</div>
```

### Clipping the block axis

Call `overflowBlock()`, which applies `hidden`, to clip content that overflows along the block axis:

```tsx
<div mix={[overflowBlock(), bs(24), is(72), maxIs("100%"), ...]}>
	<p mix={[...]}>
		This paragraph is taller than its box, so the last lines of it do not fit. Scroll to read
		the rest, while the page around the box stays exactly where it is.
	</p>
</div>
```

## Applying on a state

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

```ts
u.hover(u.overflowBlock("auto"))
```

## Responsive design

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

```ts
u.at("md", u.overflowBlock("auto"))
```

## Signature

```ts
u.overflowBlock(value?: OverflowValue)
```