# media-feature-name-whitelist Specify a whitelist of allowed media feature names. ```css @media (min-width: 700px) {} /** ↑ * These media feature names */ ``` **Caveat:** Media feature names within a range context are currently ignored. ## Options `array|string|regex`: `["array", "of", "unprefixed", "media-features" or "regex"]|"media-feature"|/regex/` Given: ```js ["max-width", "/^my-/"] ``` The following patterns are considered warnings: ```css @media (min-width: 50em) {} ``` ```css @media print and (min-resolution: 300dpi) {} ``` The following patterns are *not* considered warnings: ```css @media (max-width: 50em) {} ``` ```css @media (my-width: 50em) {} ```