## Layout
Quickly and easily create layouts with `van-row` and `van-col`
### Install
``` javascript
import { Row, Col } from 'vant';
Vue.component(Row.name, Row);
Vue.component(Col.name, Col);
```
### Usage
#### Basic
Layout are based on 24-column. The attribute `span` in `Col` means the number of column the grid spans. Of course, You can use `offset` attribute to set number of spacing on the left side of the grid.
:::demo Basic Usage
```html
span: 8
span: 8
span: 8
span: 4
offset: 4, span: 10
span: 6
offset: 12, span: 12
```
:::
#### Column Spacing
Set grid spacing using `gutter` attribute. The default value is 0
:::demo Column Spacing
```html
span: 8
span: 8
span: 8
```
:::
### API
#### Row
| Attribute | Description | Type | Default | Accepted Values |
|-----------|-----------|-----------|-------------|-------------|
| gutter | grid spacing(px) | `String | Number` | - | - |
| prefix | className prefix | `String` | `van` | - |
#### Column
| Attribute | Description | Type | Default | Accepted Values |
|-----------|-----------|-----------|-------------|-------------|
| span | number of column the grid spans | `String | Number` | - | - |
| offset | number of spacing on the left side of the grid | `String | Number` | - | - |
| prefix | className prefix | `String` | `van` | - |