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# value-list-comma-newline-before
Require a newline or disallow whitespace before the commas of value lists.
<!-- prettier-ignore -->
```css
a { background-size: 0
, 0; }
/** ↑
* The newline before this comma */
```
## Options
`string`: `"always"|"always-multi-line"|"never-multi-line"`
### `"always"`
There _must always_ be a newline before the commas.
The following patterns are considered violations:
<!-- prettier-ignore -->
```css
a { background-size: 0,0; }
```
<!-- prettier-ignore -->
```css
a { background-size: 0,
0; }
```
The following patterns are _not_ considered violations:
<!-- prettier-ignore -->
```css
a { background-size: 0
, 0; }
```
### `"always-multi-line"`
There _must always_ be a newline before the commas in multi-line value lists.
The following patterns are considered violations:
<!-- prettier-ignore -->
```css
a { background-size: 0,
0; }
```
The following patterns are _not_ considered violations:
<!-- prettier-ignore -->
```css
a { background-size: 0, 0; }
```
<!-- prettier-ignore -->
```css
a { background-size: 0,0; }
```
<!-- prettier-ignore -->
```css
a { background-size: 0
, 0; }
```
### `"never-multi-line"`
There _must never_ be whitespace before the commas in multi-line value lists.
The following patterns are considered violations:
<!-- prettier-ignore -->
```css
a { background-size: 0
, 0; }
```
The following patterns are _not_ considered violations:
<!-- prettier-ignore -->
```css
a { background-size: 0,0; }
```
<!-- prettier-ignore -->
```css
a { background-size: 0, 0; }
```
<!-- prettier-ignore -->
```css
a { background-size: 0,
0; }
```