# selector-type-case Specify lowercase or uppercase for type selectors. ```css a {} /** ↑ * This is type selector */ ``` The [`fix` option](../../../docs/user-guide/options.md#fix) can automatically fix all of the problems reported by this rule. The [`message` secondary option](../../../docs/user-guide/configure.md#message) can accept the arguments of this rule. ## Options `string`: `"lower"|"upper"` ### `"lower"` The following patterns are considered problems: ```css A {} ``` ```css LI {} ``` The following patterns are _not_ considered problems: ```css a {} ``` ```css li {} ``` ### `"upper"` The following patterns are considered problems: ```css a {} ``` ```css li {} ``` The following patterns are _not_ considered problems: ```css A {} ``` ```css LI {} ``` ## Optional secondary options ### `ignoreTypes: ["/regex/", /regex/, "non-regex"]` Given: ```json ["$childClass", "/(p|P)arent.*/"] ``` The following patterns are _not_ considered problems: ```css myParentClass { color: pink; } $childClass { color: pink; } ```