selector-pseudo-class-parentheses-space-inside

Require a single space or disallow whitespace on the inside of the parentheses within pseudo-class selectors.

input:not( [type="submit"] ) {}
/**      ↑                 ↑
 * The space inside these two parentheses */

The fix option can automatically fix most of the problems reported by this rule. It won't fix pseudo elements containing comments.

Options

string: "always"|"never"

"always"

There must always be a single space inside the parentheses.

The following patterns are considered problems:

input:not([type="submit"]) {}

input:not([type="submit"] ) {}

The following patterns are not considered problems:

input:not( [type="submit"] ) {}

"never"

There must never be whitespace on the inside the parentheses.

The following patterns are considered problems:

input:not( [type="submit"] ) {}

input:not( [type="submit"]) {}

The following patterns are not considered problems:

input:not([type="submit"]) {}