# flex-direction

> Sets `flex-direction: column`.

```ts
import { flexCol } from "@sdxc/u/layout";
```

Sets `flex-direction: column`.

## Quick reference

Every documented call, beside the CSS it emits.

| Call | CSS |
| --- | --- |
| `u.flexCol()` | `css({ flexDirection: "column" })` |

## Examples

### Basic example

Use `flexCol()` with `flex()` to stack flex items vertically:

```tsx
<div mix={[flex(), flexCol(), gap(4), is(64)]}>
	<div mix={[...]}>01</div>
	<div mix={[...]}>02</div>
	<div mix={[...]}>03</div>
</div>
```

## Applying on a state

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

```ts
u.hover(u.flexCol())
```

## Responsive design

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

```ts
u.at("md", u.flexCol())
```

## Signature

```ts
u.flexCol()
```