stylelint
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Modern CSS linter
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# function-url-quotes
Specify single, double or no quotes for urls.
```css
a { background: url("x.jpg") }
/** ↑ ↑
* These quotes */
```
## Options
`string`: `"single"|"double"|"none"`
### `"single"`
Url quotes *must always* be single.
The following patterns are considered warnings:
```css
a { background: url("x.jpg"); }
```
```css
@import url(foo.css);
```
```css
@document domain("http://www.w3.org/");
```
```css
@font-face { font-family: 'foo'; src: url("foo.ttf"); }
```
The following patterns are *not* considered warnings:
```css
a { background: url('x.jpg'); }
```
```css
@import url('foo.css');
```
```css
@document domain('http://www.w3.org/');
```
```css
@font-face { font-family: "foo"; src: url('foo.ttf'); }
```
### `"double"`
Url quotes *must always* be double.
The following patterns are considered warnings:
```css
a { background: url('x.jpg'); }
```
```css
@import url(foo.css);
```
```css
@font-face { font-family: "foo"; src: url('foo.ttf'); }
```
The following patterns are *not* considered warnings:
```css
a { background: url("x.jpg"); }
```
```css
@import url("foo.css");
```
```css
@font-face { font-family: 'foo'; src: url("foo.ttf"); }
```
### `"none"`
Urls *must not* be quoted.
The following patterns are considered warnings:
```css
a { background: url('x.jpg'); }
```
```css
@import url("foo.css");
```
```css
@font-face { font-family: "foo"; src: url('foo.ttf'); }
```
The following patterns are *not* considered warnings:
```css
a { background: url(x.jpg); }
```
```css
@import url(foo.css);
```
```css
@font-face { font-family: 'foo'; src: url(foo.ttf); }
```