# selector-pseudo-class-parentheses-space-inside Require a single space or disallow whitespace on the inside of the parentheses within pseudo-class selectors. ```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. ## Options `string`: `"always"|"never"` ### `"always"` There *must always* be a single space inside the parentheses. 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"] ) {} ``` ### `"never"` There *must never* be whitespace on the inside the parentheses. 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"]) {} ```