Patrick Marsceill b7b0d0d7bf
Initial commit
2017-03-09 13:16:08 -05:00

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# media-feature-name-no-unknown
Disallow unknown media feature names.
```css
@media (min-width: 700px) {}
/** ↑
* These media feature names */
```
This rule considers media feature names defined in the CSS Specifications, up to and including Editor's Drafts, to be known.
All vendor-prefixed media feature names are ignored.
Caveat: Media feature names within a [range context](https://www.w3.org/TR/mediaqueries-4/#mq-ranges) are currently ignored.
## Options
### `true`
The following patterns are considered warnings:
```css
@media screen and (unknown) {}
```
```css
@media screen and (unknown: 10px) {}
```
The following patterns are *not* considered warnings:
```css
@media all and (monochrome) {}
```
```css
@media (min-width: 700px) {}
```
```css
@media (MIN-WIDTH: 700px) {}
```
```css
@media (min-width: 700px) and (orientation: landscape) {}
```
```css
@media (-webkit-min-device-pixel-ratio: 2) {}
```
## Optional secondary options
### `ignoreMediaFeatureNames: ["/regex/", "string"]`
Given:
```js
["/^my-/", "custom"]
```
The following patterns are *not* considered warnings:
```css
@media screen and (my-media-feature-name) {}
```
```css
@media screen and (MY-MEDIA-FEATURE-NAME) {}
```
```css
@media screen and (custom: 10px) {}
```
```css
@media (min-width: 700px) and (custom: 10px) {}
```