# selector-attribute-operator-disallowed-list Specify a list of disallowed attribute operators. ```css [target="_blank"] {} /** ↑ * This operator */ ``` The [`message` secondary option](../../../docs/user-guide/configure.md#message) can accept the arguments of this rule. ## Options `array|string`: `["array", "of", "operators"]|"operator"` Given: ```json ["*="] ``` The following patterns are considered problems: ```css [class*="test"] {} ``` The following patterns are _not_ considered problems: ```css [target] {} ``` ```css [target="_blank"] {} ``` ```css [class|="top"] {} ```