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+CSS Media Query
+===============
+
+[![Build Status](https://travis-ci.org/ericf/css-mediaquery.png?branch=master)](https://travis-ci.org/ericf/css-mediaquery)
+[![Dependency Status](https://gemnasium.com/ericf/css-mediaquery.png)](https://gemnasium.com/ericf/css-mediaquery)
+[![npm Version](https://badge.fury.io/js/css-mediaquery.png)](https://npmjs.org/package/css-mediaquery)
+
+Parses and determines if a given CSS Media Query matches a set of values via
+JavaScript.
+
+Installation
+------------
+
+Install via npm:
+
+```shell
+$ npm install css-mediaquery
+```
+
+Usage
+-----
+
+This package has two exports: `parse()`, and `match()` which can parse CSS Media
+Queries and determine if a media query matches a given set of values.
+
+### Matching
+
+The `match()` method lets you compare a media query expression with a JavaScript
+object and determine if a media query matches a given set of values.
+
+```javascript
+var mediaQuery = require('css-mediaquery');
+
+var isMatch = mediaQuery.match('screen and (min-width: 40em)', {
+    type : 'screen',
+    width: '1024px'
+});
+
+console.log(isMatch); // => true
+```
+
+The values specified to check a media query string against should be thought of
+as if they are the current state of a device/browser. A `type` value _must_ be
+specified, and it can _not_ be `"all"`.
+
+### Parsing
+
+Existing CSS Parsers don't do a great job at parsing the details of media
+queries. That's where `css-mediaquery` shines. You can parse a media query
+expression and get an AST back by using the `parse()` method.
+
+```javascript
+var mediaQuery = require('css-mediaquery'),
+    ast        = mediaQuery.parse('screen and (min-width: 48em)');
+```
+
+The `ast` variable will have the following payload:
+
+```javascript
+[
+    {
+        inverse: false,
+        type   : 'screen',
+
+        expressions: [
+            {
+                modifier: 'min',
+                feature : 'width',
+                value   : '48em'
+            }
+        ]
+    }
+]
+```
+
+This package was written with care to following the W3C Recommendations for
+[CSS3 Media Queries][w3c-mq] and [CSS3 Values and Units][w3c-vu]. It supports
+all of the [Media Features][w3c-mq-features] and will properly convert values to
+a common unit before comparing them.
+
+
+[w3c-mq]: http://www.w3.org/TR/css3-mediaqueries/
+[w3c-mq-features]: http://www.w3.org/TR/css3-mediaqueries/#media1
+[w3c-vu]: http://www.w3.org/TR/css3-values/
+
+
+License
+-------
+
+This software is free to use under the Yahoo! Inc. BSD license.
+See the [LICENSE file][] for license text and copyright information.
+
+
+[LICENSE file]: https://github.com/ericf/css-mediaquery/blob/master/LICENSE