| # selector-pseudo-class-parentheses-space-inside |
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| Require a single space or disallow whitespace on the inside of the parentheses within pseudo-class selectors. |
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| ```css |
| input:not( [type="submit"] ) {} |
| /** ↑ ↑ |
| * The space inside these two parentheses */ |
| ``` |
| |
| The `--fix` option on the [command line](../../../docs/user-guide/cli.md#autofixing-errors) can automatically fix all of the problems reported by this rule. |
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| ## Options |
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| `string`: `"always"|"never"` |
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| ### `"always"` |
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| There *must always* be a single space inside the parentheses. |
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| The following patterns are considered violations: |
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| ```css |
| input:not([type="submit"]) {} |
| ``` |
| |
| ```css |
| input:not([type="submit"] ) {} |
| ``` |
| |
| The following patterns are *not* considered violations: |
| |
| ```css |
| input:not( [type="submit"] ) {} |
| ``` |
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| ### `"never"` |
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| There *must never* be whitespace on the inside the parentheses. |
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| The following patterns are considered violations: |
| |
| ```css |
| input:not( [type="submit"] ) {} |
| ``` |
| |
| ```css |
| input:not( [type="submit"]) {} |
| ``` |
| |
| The following patterns are *not* considered violations: |
| |
| ```css |
| input:not([type="submit"]) {} |
| ``` |