text: /*!
   * modernizr v3.3.1
   * Build http://modernizr.com/download?-addtest-atrule-domprefixes-hasevent-load-mq-prefixed-prefixedcss-prefixes-setclasses-testallprops-testprop-teststyles-dontmin
   *
   * Copyright (c)
   *  Faruk Ates
   *  Paul Irish
   *  Alex Sexton
   *  Ryan Seddon
   *  Patrick Kettner
   *  Stu Cox
   *  Richard Herrera
  
   * MIT License
   */
  
  /*
   * Modernizr tests which native CSS3 and HTML5 features are available in the
   * current UA and makes the results available to you in two ways: as properties on
   * a global `Modernizr` object, and as classes on the `<html>` element. This
   * information allows you to progressively enhance your pages with a granular level
   * of control over the experience.
  */
  
  ;(function(window, document, undefined){
    var tests = [];
    
  
    /**
     *
     * ModernizrProto is the constructor for Modernizr
     *
     * @class
     * @access public
     */
  
    var ModernizrProto = {
      // The current version, dummy
      _version: '3.3.1',
  
      // Any settings that don't work as separate modules
      // can go in here as configuration.
      _config: {
        'classPrefix': '',
        'enableClasses': true,
        'enableJSClass': true,
        'usePrefixes': true
      },
  
      // Queue of tests
      _q: [],
  
      // Stub these for people who are listening
      on: function(test, cb) {
        // I don't really think people should do this, but we can
        // safe guard it a bit.
        // -- NOTE:: this gets WAY overridden in src/addTest for actual async tests.
        // This is in case people listen to synchronous tests. I would leave it out,
        // but the code to *disallow* sync tests in the real version of this
        // function is actually larger than this.
        var self = this;
        setTimeout(function() {
          cb(self[test]);
        }, 0);
      },
  
      addTest: function(name, fn, options) {
        tests.push({name: name, fn: fn, options: options});
      },
  
      addAsyncTest: function(fn) {
        tests.push({name: null, fn: fn});
      }
    };
  
    
  
    // Fake some of Object.create so we can force non test results to be non "own" properties.
    var Modernizr = function() {};
    Modernizr.prototype = ModernizrProto;
  
    // Leak modernizr globally when you `require` it rather than force it here.
    // Overwrite name so constructor name is nicer :D
    Modernizr = new Modernizr();
  
    
  
    var classes = [];
    
  
    /**
     * is returns a boolean if the typeof an obj is exactly type.
     *
     * @access private
     * @function is
     * @param {*} obj - A thing we want to check the type of
     * @param {string} type - A string to compare the typeof against
     * @returns {boolean}
     */
  
    function is(obj, type) {
      return typeof obj === type;
    }
    ;
  
    /**
     * Run through all tests and detect their support in the current UA.
     *
     * @access private
     */
  
    function testRunner() {
      var featureNames;
      var feature;
      var aliasIdx;
      var result;
      var nameIdx;
      var featureName;
      var featureNameSplit;
  
      for (var featureIdx in tests) {
        if (tests.hasOwnProperty(featureIdx)) {
          featureNames = [];
          feature = tests[featureIdx];
          // run the test, throw the return value into the Modernizr,
          // then based on that boolean, define an appropriate className
          // and push it into an array of classes we'll join later.
          //
          // If there is no name, it's an 'async' test that is run,
          // but not directly added to the object. That should
          // be done with a post-run addTest call.
          if (feature.name) {
            featureNames.push(feature.name.toLowerCase());
  
            if (feature.options && feature.options.aliases && feature.options.aliases.length) {
              // Add all the aliases into the names list
              for (aliasIdx = 0; aliasIdx < feature.options.aliases.length; aliasIdx++) {
                featureNames.push(feature.options.aliases[aliasIdx].toLowerCase());
              }
            }
          }
  
          // Run the test, or use the raw value if it's not a function
          result = is(feature.fn, 'function') ? feature.fn() : feature.fn;
  
  
          // Set each of the names on the Modernizr object
          for (nameIdx = 0; nameIdx < featureNames.length; nameIdx++) {
            featureName = featureNames[nameIdx];
            // Support dot properties as sub tests. We don't do checking to make sure
            // that the implied parent tests have been added. You must call them in
            // order (either in the test, or make the parent test a dependency).
            //
            // Cap it to TWO to make the logic simple and because who needs that kind of subtesting
            // hashtag famous last words
            featureNameSplit = featureName.split('.');
  
            if (featureNameSplit.length === 1) {
              Modernizr[featureNameSplit[0]] = result;
            } else {
              // cast to a Boolean, if not one already
              /* jshint -W053 */
              if (Modernizr[featureNameSplit[0]] && !(Modernizr[featureNameSplit[0]] instanceof Boolean)) {
                Modernizr[featureNameSplit[0]] = new Boolean(Modernizr[featureNameSplit[0]]);
              }
  
              Modernizr[featureNameSplit[0]][featureNameSplit[1]] = result;
            }
  
            classes.push((result ? '' : 'no-') + featureNameSplit.join('-'));
          }
        }
      }
    }
    ;
  
    /**
     * docElement is a convenience wrapper to grab the root element of the document
     *
     * @access private
     * @returns {HTMLElement|SVGElement} The root element of the document
     */
  
    var docElement = document.documentElement;
    
  
    /**
     * A convenience helper to check if the document we are running in is an SVG document
     *
     * @access private
     * @returns {boolean}
     */
  
    var isSVG = docElement.nodeName.toLowerCase() === 'svg';
    
  
    /**
     * setClasses takes an array of class names and adds them to the root element
     *
     * @access private
     * @function setClasses
     * @param {string[]} classes - Array of class names
     */
  
    // Pass in an and array of class names, e.g.:
    //  ['no-webp', 'borderradius', ...]
    function setClasses(classes) {
      var className = docElement.className;
      var classPrefix = Modernizr._config.classPrefix || '';
  
      if (isSVG) {
        className = className.baseVal;
      }
  
      // Change `no-js` to `js` (independently of the `enableClasses` option)
      // Handle classPrefix on this too
      if (Modernizr._config.enableJSClass) {
        var reJS = new RegExp('(^|\\s)' + classPrefix + 'no-js(\\s|$)');
        className = className.replace(reJS, '$1' + classPrefix + 'js$2');
      }
  
      if (Modernizr._config.enableClasses) {
        // Add the new classes
        className += ' ' + classPrefix + classes.join(' ' + classPrefix);
        isSVG ? docElement.className.baseVal = className : docElement.className = className;
      }
  
    }
  
    ;
  
    /**
     * hasOwnProp is a shim for hasOwnProperty that is needed for Safari 2.0 support
     *
     * @author kangax
     * @access private
     * @function hasOwnProp
     * @param {object} object - The object to check for a property
     * @param {string} property - The property to check for
     * @returns {boolean}
     */
  
    // hasOwnProperty shim by kangax needed for Safari 2.0 support
    var hasOwnProp;
  
    (function() {
      var _hasOwnProperty = ({}).hasOwnProperty;
      /* istanbul ignore else */
      /* we have no way of testing IE 5.5 or safari 2,
       * so just assume the else gets hit */
      if (!is(_hasOwnProperty, 'undefined') && !is(_hasOwnProperty.call, 'undefined')) {
        hasOwnProp = function(object, property) {
          return _hasOwnProperty.call(object, property);
        };
      }
      else {
        hasOwnProp = function(object, property) { /* yes, this can give false positives/negatives, but most of the time we don't care about those */
          return ((property in object) && is(object.constructor.prototype[property], 'undefined'));
        };
      }
    })();
  
    
  
  
     // _l tracks listeners for async tests, as well as tests that execute after the initial run
    ModernizrProto._l = {};
  
    /**
     * Modernizr.on is a way to listen for the completion of async tests. Being
     * asynchronous, they may not finish before your scripts run. As a result you
     * will get a possibly false negative `undefined` value.
     *
     * @memberof Modernizr
     * @name Modernizr.on
     * @access public
     * @function on
     * @param {string} feature - String name of the feature detect
     * @param {function} cb - Callback function returning a Boolean - true if feature is supported, false if not
     * @example
     *
     * ```js
     * Modernizr.on('flash', function( result ) {
     *   if (result) {
     *    // the browser has flash
     *   } else {
     *     // the browser does not have flash
     *   }
     * });
     * ```
     */
  
    ModernizrProto.on = function(feature, cb) {
      // Create the list of listeners if it doesn't exist
      if (!this._l[feature]) {
        this._l[feature] = [];
      }
  
      // Push this test on to the listener list
      this._l[feature].push(cb);
  
      // If it's already been resolved, trigger it on next tick
      if (Modernizr.hasOwnProperty(feature)) {
        // Next Tick
        setTimeout(function() {
          Modernizr._trigger(feature, Modernizr[feature]);
        }, 0);
      }
    };
  
    /**
     * _trigger is the private function used to signal test completion and run any
     * callbacks registered through [Modernizr.on](#modernizr-on)
     *
     * @memberof Modernizr
     * @name Modernizr._trigger
     * @access private
     * @function _trigger
     * @param {string} feature - string name of the feature detect
     * @param {function|boolean} [res] - A feature detection function, or the boolean =
     * result of a feature detection function
     */
  
    ModernizrProto._trigger = function(feature, res) {
      if (!this._l[feature]) {
        return;
      }
  
      var cbs = this._l[feature];
  
      // Force async
      setTimeout(function() {
        var i, cb;
        for (i = 0; i < cbs.length; i++) {
          cb = cbs[i];
          cb(res);
        }
      }, 0);
  
      // Don't trigger these again
      delete this._l[feature];
    };
  
    /**
     * addTest allows you to define your own feature detects that are not currently
     * included in Modernizr (under the covers it's the exact same code Modernizr
     * uses for its own [feature detections](https://github.com/Modernizr/Modernizr/tree/master/feature-detects)). Just like the offical detects, the result
     * will be added onto the Modernizr object, as well as an appropriate className set on
     * the html element when configured to do so
     *
     * @memberof Modernizr
     * @name Modernizr.addTest
     * @optionName Modernizr.addTest()
     * @optionProp addTest
     * @access public
     * @function addTest
     * @param {string|object} feature - The string name of the feature detect, or an
     * object of feature detect names and test
     * @param {function|boolean} test - Function returning true if feature is supported,
     * false if not. Otherwise a boolean representing the results of a feature detection
     * @example
     *
     * The most common way of creating your own feature detects is by calling
     * `Modernizr.addTest` with a string (preferably just lowercase, without any
     * punctuation), and a function you want executed that will return a boolean result
     *
     * ```js
     * Modernizr.addTest('itsTuesday', function() {
     *  var d = new Date();
     *  return d.getDay() === 2;
     * });
     * ```
     *
     * When the above is run, it will set Modernizr.itstuesday to `true` when it is tuesday,
     * and to `false` every other day of the week. One thing to notice is that the names of
     * feature detect functions are always lowercased when added to the Modernizr object. That
     * means that `Modernizr.itsTuesday` will not exist, but `Modernizr.itstuesday` will.
     *
     *
     *  Since we only look at the returned value from any feature detection function,
     *  you do not need to actually use a function. For simple detections, just passing
     *  in a statement that will return a boolean value works just fine.
     *
     * ```js
     * Modernizr.addTest('hasJquery', 'jQuery' in window);
     * ```
     *
     * Just like before, when the above runs `Modernizr.hasjquery` will be true if
     * jQuery has been included on the page. Not using a function saves a small amount
     * of overhead for the browser, as well as making your code much more readable.
     *
     * Finally, you also have the ability to pass in an object of feature names and
     * their tests. This is handy if you want to add multiple detections in one go.
     * The keys should always be a string, and the value can be either a boolean or
     * function that returns a boolean.
     *
     * ```js
     * var detects = {
     *  'hasjquery': 'jQuery' in window,
     *  'itstuesday': function() {
     *    var d = new Date();
     *    return d.getDay() === 2;
     *  }
     * }
     *
     * Modernizr.addTest(detects);
     * ```
     *
     * There is really no difference between the first methods and this one, it is
     * just a convenience to let you write more readable code.
     */
  
    function addTest(feature, test) {
  
      if (typeof feature == 'object') {
        for (var key in feature) {
          if (hasOwnProp(feature, key)) {
            addTest(key, feature[ key ]);
          }
        }
      } else {
  
        feature = feature.toLowerCase();
        var featureNameSplit = feature.split('.');
        var last = Modernizr[featureNameSplit[0]];
  
        // Again, we don't check for parent test existence. Get that right, though.
        if (featureNameSplit.length == 2) {
          last = last[featureNameSplit[1]];
        }
  
        if (typeof last != 'undefined') {
          // we're going to quit if you're trying to overwrite an existing test
          // if we were to allow it, we'd do this:
          //   var re = new RegExp("\\b(no-)?" + feature + "\\b");
          //   docElement.className = docElement.className.replace( re, '' );
          // but, no rly, stuff 'em.
          return Modernizr;
        }
  
        test = typeof test == 'function' ? test() : test;
  
        // Set the value (this is the magic, right here).
        if (featureNameSplit.length == 1) {
          Modernizr[featureNameSplit[0]] = test;
        } else {
          // cast to a Boolean, if not one already
          /* jshint -W053 */
          if (Modernizr[featureNameSplit[0]] && !(Modernizr[featureNameSplit[0]] instanceof Boolean)) {
            Modernizr[featureNameSplit[0]] = new Boolean(Modernizr[featureNameSplit[0]]);
          }
  
          Modernizr[featureNameSplit[0]][featureNameSplit[1]] = test;
        }
  
        // Set a single class (either `feature` or `no-feature`)
        /* jshint -W041 */
        setClasses([(!!test && test != false ? '' : 'no-') + featureNameSplit.join('-')]);
        /* jshint +W041 */
  
        // Trigger the event
        Modernizr._trigger(feature, test);
      }
  
      return Modernizr; // allow chaining.
    }
  
    // After all the tests are run, add self to the Modernizr prototype
    Modernizr._q.push(function() {
      ModernizrProto.addTest = addTest;
    });
  
    
  
  
    /**
     * If the browsers follow the spec, then they would expose vendor-specific style as:
     *   elem.style.WebkitBorderRadius
     * instead of something like the following, which would be technically incorrect:
     *   elem.style.webkitBorderRadius
  
     * Webkit ghosts their properties in lowercase but Opera & Moz do not.
     * Microsoft uses a lowercase `ms` instead of the correct `Ms` in IE8+
     *   erik.eae.net/archives/2008/03/10/21.48.10/
  
     * More here: github.com/Modernizr/Modernizr/issues/issue/21
     *
     * @access private
     * @returns {string} The string representing the vendor-specific style properties
     */
  
    var omPrefixes = 'Moz O ms Webkit';
    
  
    var cssomPrefixes = (ModernizrProto._config.usePrefixes ? omPrefixes.split(' ') : []);
    ModernizrProto._cssomPrefixes = cssomPrefixes;
    
  
    /**
     * atRule returns a given CSS property at-rule (eg @keyframes), possibly in
     * some prefixed form, or false, in the case of an unsupported rule
     *
     * @memberof Modernizr
     * @name Modernizr.atRule
     * @optionName Modernizr.atRule()
     * @optionProp atRule
     * @access public
     * @function atRule
     * @param {string} prop - String name of the @-rule to test for
     * @returns {string|boolean} The string representing the (possibly prefixed)
     * valid version of the @-rule, or `false` when it is unsupported.
     * @example
     * ```js
     *  var keyframes = Modernizr.atRule('@keyframes');
     *
     *  if (keyframes) {
     *    // keyframes are supported
     *    // could be `@-webkit-keyframes` or `@keyframes`
     *  } else {
     *    // keyframes === `false`
     *  }
     * ```
     *
     */
  
    var atRule = function(prop) {
      var length = prefixes.length;
      var cssrule = window.CSSRule;
      var rule;
  
      if (typeof cssrule === 'undefined') {
        return undefined;
      }
  
      if (!prop) {
        return false;
      }
  
      // remove literal @ from beginning of provided property
      prop = prop.replace(/^@/, '');
  
      // CSSRules use underscores instead of dashes
      rule = prop.replace(/-/g, '_').toUpperCase() + '_RULE';
  
      if (rule in cssrule) {
        return '@' + prop;
      }
  
      for (var i = 0; i < length; i++) {
        // prefixes gives us something like -o-, and we want O_
        var prefix = prefixes[i];
        var thisRule = prefix.toUpperCase() + '_' + rule;
  
        if (thisRule in cssrule) {
          return '@-' + prefix.toLowerCase() + '-' + prop;
        }
      }
  
      return false;
    };
  
    ModernizrProto.atRule = atRule;
  
    
  
    /**
     * List of JavaScript DOM values used for tests
     *
     * @memberof Modernizr
     * @name Modernizr._domPrefixes
     * @optionName Modernizr._domPrefixes
     * @optionProp domPrefixes
     * @access public
     * @example
     *
     * Modernizr._domPrefixes is exactly the same as [_prefixes](#modernizr-_prefixes), but rather
     * than kebab-case properties, all properties are their Capitalized variant
     *
     * ```js
     * Modernizr._domPrefixes === [ "Moz", "O", "ms", "Webkit" ];
     * ```
     */
  
    var domPrefixes = (ModernizrProto._config.usePrefixes ? omPrefixes.toLowerCase().split(' ') : []);
    ModernizrProto._domPrefixes = domPrefixes;
    
  
    /**
     * createElement is a convenience wrapper around document.createElement. Since we
     * use createElement all over the place, this allows for (slightly) smaller code
     * as well as abstracting away issues with creating elements in contexts other than
     * HTML documents (e.g. SVG documents).
     *
     * @access private
     * @function createElement
     * @returns {HTMLElement|SVGElement} An HTML or SVG element
     */
  
    function createElement() {
      if (typeof document.createElement !== 'function') {
        // This is the case in IE7, where the type of createElement is "object".
        // For this reason, we cannot call apply() as Object is not a Function.
        return document.createElement(arguments[0]);
      } else if (isSVG) {
        return document.createElementNS.call(document, 'http://www.w3.org/2000/svg', arguments[0]);
      } else {
        return document.createElement.apply(document, arguments);
      }
    }
  
    ;
  
    /**
     * Modernizr.hasEvent() detects support for a given event
     *
     * @memberof Modernizr
     * @name Modernizr.hasEvent
     * @optionName Modernizr.hasEvent()
     * @optionProp hasEvent
     * @access public
     * @function hasEvent
     * @param  {string|*} eventName - the name of an event to test for (e.g. "resize")
     * @param  {Element|string} [element=HTMLDivElement] - is the element|document|window|tagName to test on
     * @returns {boolean}
     * @example
     *  `Modernizr.hasEvent` lets you determine if the browser supports a supplied event.
     *  By default, it does this detection on a div element
     *
     * ```js
     *  hasEvent('blur') // true;
     * ```
     *
     * However, you are able to give an object as a second argument to hasEvent to
     * detect an event on something other than a div.
     *
     * ```js
     *  hasEvent('devicelight', window) // true;
     * ```
     *
     */
  
    var hasEvent = (function() {
  
      // Detect whether event support can be detected via `in`. Test on a DOM element
      // using the "blur" event b/c it should always exist. bit.ly/event-detection
      var needsFallback = !('onblur' in document.documentElement);
  
      function inner(eventName, element) {
  
        var isSupported;
        if (!eventName) { return false; }
        if (!element || typeof element === 'string') {
          element = createElement(element || 'div');
        }
  
        // Testing via the `in` operator is sufficient for modern browsers and IE.
        // When using `setAttribute`, IE skips "unload", WebKit skips "unload" and
        // "resize", whereas `in` "catches" those.
        eventName = 'on' + eventName;
        isSupported = eventName in element;
  
        // Fallback technique for old Firefox - bit.ly/event-detection
        if (!isSupported && needsFallback) {
          if (!element.setAttribute) {
            // Switch to generic element if it lacks `setAttribute`.
            // It could be the `document`, `window`, or something else.
            element = createElement('div');
          }
  
          element.setAttribute(eventName, '');
          isSupported = typeof element[eventName] === 'function';
  
          if (element[eventName] !== undefined) {
            // If property was created, "remove it" by setting value to `undefined`.
            element[eventName] = undefined;
          }
          element.removeAttribute(eventName);
        }
  
        return isSupported;
      }
      return inner;
    })();
  
  
    ModernizrProto.hasEvent = hasEvent;
    
  
    /**
     * Previously, Modernizr.load was an alias for yepnope. Since yepnope was
     * deprecated, we removed it as well. It is not available on the website builder,
     * this is only included as an improved warning to those who build a custom
     * version locally.
     *
     * @memberof Modernizr
     * @name Modernizr.load
     * @access private
     * @function load
     *
     */
  
    var err = function() {};
    var warn = function() {};
  
    if (window.console) {
      err = function() {
        var method = console.error ? 'error' : 'log';
        window.console[method].apply(window.console, Array.prototype.slice.call(arguments));
      };
  
      warn = function() {
        var method = console.warn ? 'warn' : 'log';
        window.console[method].apply(window.console, Array.prototype.slice.call(arguments));
      };
    }
  
    ModernizrProto.load = function() {
      if ('yepnope' in window) {
        warn('yepnope.js (aka Modernizr.load) is no longer included as part of Modernizr. yepnope appears to be available on the page, so we’ll use it to handle this call to Modernizr.load, but please update your code to use yepnope directly.\n See http://github.com/Modernizr/Modernizr/issues/1182 for more information.');
        window.yepnope.apply(window, [].slice.call(arguments, 0));
      } else {
        err('yepnope.js (aka Modernizr.load) is no longer included as part of Modernizr. Get it from http://yepnopejs.com. See http://github.com/Modernizr/Modernizr/issues/1182 for more information.');
      }
    };
  
  
  
    /**
     * getBody returns the body of a document, or an element that can stand in for
     * the body if a real body does not exist
     *
     * @access private
     * @function getBody
     * @returns {HTMLElement|SVGElement} Returns the real body of a document, or an
     * artificially created element that stands in for the body
     */
  
    function getBody() {
      // After page load injecting a fake body doesn't work so check if body exists
      var body = document.body;
  
      if (!body) {
        // Can't use the real body create a fake one.
        body = createElement(isSVG ? 'svg' : 'body');
        body.fake = true;
      }
  
      return body;
    }
  
    ;
  
    /**
     * injectElementWithStyles injects an element with style element and some CSS rules
     *
     * @access private
     * @function injectElementWithStyles
     * @param {string} rule - String representing a css rule
     * @param {function} callback - A function that is used to test the injected element
     * @param {number} [nodes] - An integer representing the number of additional nodes you want injected
     * @param {string[]} [testnames] - An array of strings that are used as ids for the additional nodes
     * @returns {boolean}
     */
  
    function injectElementWithStyles(rule, callback, nodes, testnames) {
      var mod = 'modernizr';
      var style;
      var ret;
      var node;
      var docOverflow;
      var div = createElement('div');
      var body = getBody();
  
      if (parseInt(nodes, 10)) {
        // In order not to give false positives we create a node for each test
        // This also allows the method to scale for unspecified uses
        while (nodes--) {
          node = createElement('div');
          node.id = testnames ? testnames[nodes] : mod + (nodes + 1);
          div.appendChild(node);
        }
      }
  
      style = createElement('style');
      style.type = 'text/css';
      style.id = 's' + mod;
  
      // IE6 will false positive on some tests due to the style element inside the test div somehow interfering offsetHeight, so insert it into body or fakebody.
      // Opera will act all quirky when injecting elements in documentElement when page is served as xml, needs fakebody too. #270
      (!body.fake ? div : body).appendChild(style);
      body.appendChild(div);
  
      if (style.styleSheet) {
        style.styleSheet.cssText = rule;
      } else {
        style.appendChild(document.createTextNode(rule));
      }
      div.id = mod;
  
      if (body.fake) {
        //avoid crashing IE8, if background image is used
        body.style.background = '';
        //Safari 5.13/5.1.4 OSX stops loading if ::-webkit-scrollbar is used and scrollbars are visible
        body.style.overflow = 'hidden';
        docOverflow = docElement.style.overflow;
        docElement.style.overflow = 'hidden';
        docElement.appendChild(body);
      }
  
      ret = callback(div, rule);
      // If this is done after page load we don't want to remove the body so check if body exists
      if (body.fake) {
        body.parentNode.removeChild(body);
        docElement.style.overflow = docOverflow;
        // Trigger layout so kinetic scrolling isn't disabled in iOS6+
        docElement.offsetHeight;
      } else {
        div.parentNode.removeChild(div);
      }
  
      return !!ret;
  
    }
  
    ;
  
    /**
     * Modernizr.mq tests a given media query, live against the current state of the window
     * adapted from matchMedia polyfill by Scott Jehl and Paul Irish
     * gist.github.com/786768
     *
     * @memberof Modernizr
     * @name Modernizr.mq
     * @optionName Modernizr.mq()
     * @optionProp mq
     * @access public
     * @function mq
     * @param {string} mq - String of the media query we want to test
     * @returns {boolean}
     * @example
     * Modernizr.mq allows for you to programmatically check if the current browser
     * window state matches a media query.
     *
     * ```js
     *  var query = Modernizr.mq('(min-width: 900px)');
     *
     *  if (query) {
     *    // the browser window is larger than 900px
     *  }
     * ```
     *
     * Only valid media queries are supported, therefore you must always include values
     * with your media query
     *
     * ```js
     * // good
     *  Modernizr.mq('(min-width: 900px)');
     *
     * // bad
     *  Modernizr.mq('min-width');
     * ```
     *
     * If you would just like to test that media queries are supported in general, use
     *
     * ```js
     *  Modernizr.mq('only all'); // true if MQ are supported, false if not
     * ```
     *
     *
     * Note that if the browser does not support media queries (e.g. old IE) mq will
     * always return false.
     */
  
    var mq = (function() {
      var matchMedia = window.matchMedia || window.msMatchMedia;
      if (matchMedia) {
        return function(mq) {
          var mql = matchMedia(mq);
          return mql && mql.matches || false;
        };
      }
  
      return function(mq) {
        var bool = false;
  
        injectElementWithStyles('@media ' + mq + ' { #modernizr { position: absolute; } }', function(node) {
          bool = (window.getComputedStyle ?
                  window.getComputedStyle(node, null) :
                  node.currentStyle).position == 'absolute';
        });
  
        return bool;
      };
    })();
  
  
    ModernizrProto.mq = mq;
  
    
  
  
    /**
     * contains checks to see if a string contains another string
     *
     * @access private
     * @function contains
     * @param {string} str - The string we want to check for substrings
     * @param {string} substr - The substring we want to search the first string for
     * @returns {boolean}
     */
  
    function contains(str, substr) {
      return !!~('' + str).indexOf(substr);
    }
  
    ;
  
    /**
     * Create our "modernizr" element that we do most feature tests on.
     *
     * @access private
     */
  
    var modElem = {
      elem: createElement('modernizr')
    };
  
    // Clean up this element
    Modernizr._q.push(function() {
      delete modElem.elem;
    });
  
    
  
    var mStyle = {
      style: modElem.elem.style
    };
  
    // kill ref for gc, must happen before mod.elem is removed, so we unshift on to
    // the front of the queue.
    Modernizr._q.unshift(function() {
      delete mStyle.style;
    });
  
    
  
    /**
     * domToCSS takes a camelCase string and converts it to kebab-case
     * e.g. boxSizing -> box-sizing
     *
     * @access private
     * @function domToCSS
     * @param {string} name - String name of camelCase prop we want to convert
     * @returns {string} The kebab-case version of the supplied name
     */
  
    function domToCSS(name) {
      return name.replace(/([A-Z])/g, function(str, m1) {
        return '-' + m1.toLowerCase();
      }).replace(/^ms-/, '-ms-');
    }
    ;
  
    /**
     * nativeTestProps allows for us to use native feature detection functionality if available.
     * some prefixed form, or false, in the case of an unsupported rule
     *
     * @access private
     * @function nativeTestProps
     * @param {array} props - An array of property names
     * @param {string} value - A string representing the value we want to check via @supports
     * @returns {boolean|undefined} A boolean when @supports exists, undefined otherwise
     */
  
    // Accepts a list of property names and a single value
    // Returns `undefined` if native detection not available
    function nativeTestProps(props, value) {
      var i = props.length;
      // Start with the JS API: http://www.w3.org/TR/css3-conditional/#the-css-interface
      if ('CSS' in window && 'supports' in window.CSS) {
        // Try every prefixed variant of the property
        while (i--) {
          if (window.CSS.supports(domToCSS(props[i]), value)) {
            return true;
          }
        }
        return false;
      }
      // Otherwise fall back to at-rule (for Opera 12.x)
      else if ('CSSSupportsRule' in window) {
        // Build a condition string for every prefixed variant
        var conditionText = [];
        while (i--) {
          conditionText.push('(' + domToCSS(props[i]) + ':' + value + ')');
        }
        conditionText = conditionText.join(' or ');
        return injectElementWithStyles('@supports (' + conditionText + ') { #modernizr { position: absolute; } }', function(node) {
          return getComputedStyle(node, null).position == 'absolute';
        });
      }
      return undefined;
    }
    ;
  
    /**
     * cssToDOM takes a kebab-case string and converts it to camelCase
     * e.g. box-sizing -> boxSizing
     *
     * @access private
     * @function cssToDOM
     * @param {string} name - String name of kebab-case prop we want to convert
     * @returns {string} The camelCase version of the supplied name
     */
  
    function cssToDOM(name) {
      return name.replace(/([a-z])-([a-z])/g, function(str, m1, m2) {
        return m1 + m2.toUpperCase();
      }).replace(/^-/, '');
    }
    ;
  
    // testProps is a generic CSS / DOM property test.
  
    // In testing support for a given CSS property, it's legit to test:
    //    `elem.style[styleName] !== undefined`
    // If the property is supported it will return an empty string,
    // if unsupported it will return undefined.
  
    // We'll take advantage of this quick test and skip setting a style
    // on our modernizr element, but instead just testing undefined vs
    // empty string.
  
    // Property names can be provided in either camelCase or kebab-case.
  
    function testProps(props, prefixed, value, skipValueTest) {
      skipValueTest = is(skipValueTest, 'undefined') ? false : skipValueTest;
  
      // Try native detect first
      if (!is(value, 'undefined')) {
        var result = nativeTestProps(props, value);
        if (!is(result, 'undefined')) {
          return result;
        }
      }
  
      // Otherwise do it properly
      var afterInit, i, propsLength, prop, before;
  
      // If we don't have a style element, that means we're running async or after
      // the core tests, so we'll need to create our own elements to use
  
      // inside of an SVG element, in certain browsers, the `style` element is only
      // defined for valid tags. Therefore, if `modernizr` does not have one, we
      // fall back to a less used element and hope for the best.
      var elems = ['modernizr', 'tspan'];
      while (!mStyle.style) {
        afterInit = true;
        mStyle.modElem = createElement(elems.shift());
        mStyle.style = mStyle.modElem.style;
      }
  
      // Delete the objects if we created them.
      function cleanElems() {
        if (afterInit) {
          delete mStyle.style;
          delete mStyle.modElem;
        }
      }
  
      propsLength = props.length;
      for (i = 0; i < propsLength; i++) {
        prop = props[i];
        before = mStyle.style[prop];
  
        if (contains(prop, '-')) {
          prop = cssToDOM(prop);
        }
  
        if (mStyle.style[prop] !== undefined) {
  
          // If value to test has been passed in, do a set-and-check test.
          // 0 (integer) is a valid property value, so check that `value` isn't
          // undefined, rather than just checking it's truthy.
          if (!skipValueTest && !is(value, 'undefined')) {
  
            // Needs a try catch block because of old IE. This is slow, but will
            // be avoided in most cases because `skipValueTest` will be used.
            try {
              mStyle.style[prop] = value;
            } catch (e) {}
  
            // If the property value has changed, we assume the value used is
            // supported. If `value` is empty string, it'll fail here (because
            // it hasn't changed), which matches how browsers have implemented
            // CSS.supports()
            if (mStyle.style[prop] != before) {
              cleanElems();
              return prefixed == 'pfx' ? prop : true;
            }
          }
          // Otherwise just return true, or the property name if this is a
          // `prefixed()` call
          else {
            cleanElems();
            return prefixed == 'pfx' ? prop : true;
          }
        }
      }
      cleanElems();
      return false;
    }
  
    ;
  
    /**
     * fnBind is a super small [bind](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/bind) polyfill.
     *
     * @access private
     * @function fnBind
     * @param {function} fn - a function you want to change `this` reference to
     * @param {object} that - the `this` you want to call the function with
     * @returns {function} The wrapped version of the supplied function
     */
  
    function fnBind(fn, that) {
      return function() {
        return fn.apply(that, arguments);
      };
    }
  
    ;
  
    /**
     * testDOMProps is a generic DOM property test; if a browser supports
     *   a certain property, it won't return undefined for it.
     *
     * @access private
     * @function testDOMProps
     * @param {array.<string>} props - An array of properties to test for
     * @param {object} obj - An object or Element you want to use to test the parameters again
     * @param {boolean|object} elem - An Element to bind the property lookup again. Use `false` to prevent the check
     */
    function testDOMProps(props, obj, elem) {
      var item;
  
      for (var i in props) {
        if (props[i] in obj) {
  
          // return the property name as a string
          if (elem === false) {
            return props[i];
          }
  
          item = obj[props[i]];
  
          // let's bind a function
          if (is(item, 'function')) {
            // bind to obj unless overriden
            return fnBind(item, elem || obj);
          }
  
          // return the unbound function or obj or value
          return item;
        }
      }
      return false;
    }
  
    ;
  
    /**
     * testPropsAll tests a list of DOM properties we want to check against.
     * We specify literally ALL possible (known and/or likely) properties on
     * the element including the non-vendor prefixed one, for forward-
     * compatibility.
     *
     * @access private
     * @function testPropsAll
     * @param {string} prop - A string of the property to test for
     * @param {string|object} [prefixed] - An object to check the prefixed properties on. Use a string to skip
     * @param {HTMLElement|SVGElement} [elem] - An element used to test the property and value against
     * @param {string} [value] - A string of a css value
     * @param {boolean} [skipValueTest] - An boolean representing if you want to test if value sticks when set
     */
    function testPropsAll(prop, prefixed, elem, value, skipValueTest) {
  
      var ucProp = prop.charAt(0).toUpperCase() + prop.slice(1),
      props = (prop + ' ' + cssomPrefixes.join(ucProp + ' ') + ucProp).split(' ');
  
      // did they call .prefixed('boxSizing') or are we just testing a prop?
      if (is(prefixed, 'string') || is(prefixed, 'undefined')) {
        return testProps(props, prefixed, value, skipValueTest);
  
        // otherwise, they called .prefixed('requestAnimationFrame', window[, elem])
      } else {
        props = (prop + ' ' + (domPrefixes).join(ucProp + ' ') + ucProp).split(' ');
        return testDOMProps(props, prefixed, elem);
      }
    }
  
    // Modernizr.testAllProps() investigates whether a given style property,
    // or any of its vendor-prefixed variants, is recognized
    //
    // Note that the property names must be provided in the camelCase variant.
    // Modernizr.testAllProps('boxSizing')
    ModernizrProto.testAllProps = testPropsAll;
  
    
  
    /**
     * prefixed returns the prefixed or nonprefixed property name variant of your input
     *
     * @memberof Modernizr
     * @name Modernizr.prefixed
     * @optionName Modernizr.prefixed()
     * @optionProp prefixed
     * @access public
     * @function prefixed
     * @param {string} prop - String name of the property to test for
     * @param {object} [obj] - An object to test for the prefixed properties on
     * @param {HTMLElement} [elem] - An element used to test specific properties against
     * @returns {string|false} The string representing the (possibly prefixed) valid
     * version of the property, or `false` when it is unsupported.
     * @example
     *
     * Modernizr.prefixed takes a string css value in the DOM style camelCase (as
     * opposed to the css style kebab-case) form and returns the (possibly prefixed)
     * version of that property that the browser actually supports.
     *
     * For example, in older Firefox...
     * ```js
     * prefixed('boxSizing')
     * ```
     * returns 'MozBoxSizing'
     *
     * In newer Firefox, as well as any other browser that support the unprefixed
     * version would simply return `boxSizing`. Any browser that does not support
     * the property at all, it will return `false`.
     *
     * By default, prefixed is checked against a DOM element. If you want to check
     * for a property on another object, just pass it as a second argument
     *
     * ```js
     * var rAF = prefixed('requestAnimationFrame', window);
     *
     * raf(function() {
     *  renderFunction();
     * })
     * ```
     *
     * Note that this will return _the actual function_ - not the name of the function.
     * If you need the actual name of the property, pass in `false` as a third argument
     *
     * ```js
     * var rAFProp = prefixed('requestAnimationFrame', window, false);
     *
     * rafProp === 'WebkitRequestAnimationFrame' // in older webkit
     * ```
     *
     * One common use case for prefixed is if you're trying to determine which transition
     * end event to bind to, you might do something like...
     * ```js
     * var transEndEventNames = {
     *     'WebkitTransition' : 'webkitTransitionEnd', * Saf 6, Android Browser
     *     'MozTransition'    : 'transitionend',       * only for FF < 15
     *     'transition'       : 'transitionend'        * IE10, Opera, Chrome, FF 15+, Saf 7+
     * };
     *
     * var transEndEventName = transEndEventNames[ Modernizr.prefixed('transition') ];
     * ```
     *
     * If you want a similar lookup, but in kebab-case, you can use [prefixedCSS](#modernizr-prefixedcss).
     */
  
    var prefixed = ModernizrProto.prefixed = function(prop, obj, elem) {
      if (prop.indexOf('@') === 0) {
        return atRule(prop);
      }
  
      if (prop.indexOf('-') != -1) {
        // Convert kebab-case to camelCase
        prop = cssToDOM(prop);
      }
      if (!obj) {
        return testPropsAll(prop, 'pfx');
      } else {
        // Testing DOM property e.g. Modernizr.prefixed('requestAnimationFrame', window) // 'mozRequestAnimationFrame'
        return testPropsAll(prop, obj, elem);
      }
    };
  
    
  
    /**
     * List of property values to set for css tests. See ticket #21
     * http://git.io/vUGl4
     *
     * @memberof Modernizr
     * @name Modernizr._prefixes
     * @optionName Modernizr._prefixes
     * @optionProp prefixes
     * @access public
     * @example
     *
     * Modernizr._prefixes is the internal list of prefixes that we test against
     * inside of things like [prefixed](#modernizr-prefixed) and [prefixedCSS](#-code-modernizr-prefixedcss). It is simply
     * an array of kebab-case vendor prefixes you can use within your code.
     *
     * Some common use cases include
     *
     * Generating all possible prefixed version of a CSS property
     * ```js
     * var rule = Modernizr._prefixes.join('transform: rotate(20deg); ');
     *
     * rule === 'transform: rotate(20deg); webkit-transform: rotate(20deg); moz-transform: rotate(20deg); o-transform: rotate(20deg); ms-transform: rotate(20deg);'
     * ```
     *
     * Generating all possible prefixed version of a CSS value
     * ```js
     * rule = 'display:' +  Modernizr._prefixes.join('flex; display:') + 'flex';
     *
     * rule === 'display:flex; display:-webkit-flex; display:-moz-flex; display:-o-flex; display:-ms-flex; display:flex'
     * ```
     */
  
    var prefixes = (ModernizrProto._config.usePrefixes ? ' -webkit- -moz- -o- -ms- '.split(' ') : []);
  
    // expose these for the plugin API. Look in the source for how to join() them against your input
    ModernizrProto._prefixes = prefixes;
  
    
  
    /**
     * prefixedCSS is just like [prefixed](#modernizr-prefixed), but the returned values are in
     * kebab-case (e.g. `box-sizing`) rather than camelCase (boxSizing).
     *
     * @memberof Modernizr
     * @name Modernizr.prefixedCSS
     * @optionName Modernizr.prefixedCSS()
     * @optionProp prefixedCSS
     * @access public
     * @function prefixedCSS
     * @param {string} prop - String name of the property to test for
     * @returns {string|false} The string representing the (possibly prefixed)
     * valid version of the property, or `false` when it is unsupported.
     * @example
     *
     * `Modernizr.prefixedCSS` is like `Modernizr.prefixed`, but returns the result
     * in hyphenated form
     *
     * ```js
     * Modernizr.prefixedCSS('transition') // '-moz-transition' in old Firefox
     * ```
     *
     * Since it is only useful for CSS style properties, it can only be tested against
     * an HTMLElement.
     *
     * Properties can be passed as both the DOM style camelCase or CSS style kebab-case.
     */
  
    var prefixedCSS = ModernizrProto.prefixedCSS = function(prop) {
      var prefixedProp = prefixed(prop);
      return prefixedProp && domToCSS(prefixedProp);
    };
    
  
    /**
     * testAllProps determines whether a given CSS property is supported in the browser
     *
     * @memberof Modernizr
     * @name Modernizr.testAllProps
     * @optionName Modernizr.testAllProps()
     * @optionProp testAllProps
     * @access public
     * @function testAllProps
     * @param {string} prop - String naming the property to test (either camelCase or kebab-case)
     * @param {string} [value] - String of the value to test
     * @param {boolean} [skipValueTest=false] - Whether to skip testing that the value is supported when using non-native detection
     * @example
     *
     * testAllProps determines whether a given CSS property, in some prefixed form,
     * is supported by the browser.
     *
     * ```js
     * testAllProps('boxSizing')  // true
     * ```
     *
     * It can optionally be given a CSS value in string form to test if a property
     * value is valid
     *
     * ```js
     * testAllProps('display', 'block') // true
     * testAllProps('display', 'penguin') // false
     * ```
     *
     * A boolean can be passed as a third parameter to skip the value check when
     * native detection (@supports) isn't available.
     *
     * ```js
     * testAllProps('shapeOutside', 'content-box', true);
     * ```
     */
  
    function testAllProps(prop, value, skipValueTest) {
      return testPropsAll(prop, undefined, undefined, value, skipValueTest);
    }
    ModernizrProto.testAllProps = testAllProps;
    
  
    /**
     * testProp() investigates whether a given style property is recognized
     * Property names can be provided in either camelCase or kebab-case.
     *
     * @memberof Modernizr
     * @name Modernizr.testProp
     * @access public
     * @optionName Modernizr.testProp()
     * @optionProp testProp
     * @function testProp
     * @param {string} prop - Name of the CSS property to check
     * @param {string} [value] - Name of the CSS value to check
     * @param {boolean} [useValue] - Whether or not to check the value if @supports isn't supported
     * @returns {boolean}
     * @example
     *
     * Just like [testAllProps](#modernizr-testallprops), only it does not check any vendor prefixed
     * version of the string.
     *
     * Note that the property name must be provided in camelCase (e.g. boxSizing not box-sizing)
     *
     * ```js
     * Modernizr.testProp('pointerEvents')  // true
     * ```
     *
     * You can also provide a value as an optional second argument to check if a
     * specific value is supported
     *
     * ```js
     * Modernizr.testProp('pointerEvents', 'none') // true
     * Modernizr.testProp('pointerEvents', 'penguin') // false
     * ```
     */
  
    var testProp = ModernizrProto.testProp = function(prop, value, useValue) {
      return testProps([prop], undefined, value, useValue);
    };
    
  
    /**
     * testStyles injects an element with style element and some CSS rules
     *
     * @memberof Modernizr
     * @name Modernizr.testStyles
     * @optionName Modernizr.testStyles()
     * @optionProp testStyles
     * @access public
     * @function testStyles
     * @param {string} rule - String representing a css rule
     * @param {function} callback - A function that is used to test the injected element
     * @param {number} [nodes] - An integer representing the number of additional nodes you want injected
     * @param {string[]} [testnames] - An array of strings that are used as ids for the additional nodes
     * @returns {boolean}
     * @example
     *
     * `Modernizr.testStyles` takes a CSS rule and injects it onto the current page
     * along with (possibly multiple) DOM elements. This lets you check for features
     * that can not be detected by simply checking the [IDL](https://developer.mozilla.org/en-US/docs/Mozilla/Developer_guide/Interface_development_guide/IDL_interface_rules).
     *
     * ```js
     * Modernizr.testStyles('#modernizr { width: 9px; color: papayawhip; }', function(elem, rule) {
     *   // elem is the first DOM node in the page (by default #modernizr)
     *   // rule is the first argument you supplied - the CSS rule in string form
     *
     *   addTest('widthworks', elem.style.width === '9px')
     * });
     * ```
     *
     * If your test requires multiple nodes, you can include a third argument
     * indicating how many additional div elements to include on the page. The
     * additional nodes are injected as children of the `elem` that is returned as
     * the first argument to the callback.
     *
     * ```js
     * Modernizr.testStyles('#modernizr {width: 1px}; #modernizr2 {width: 2px}', function(elem) {
     *   document.getElementById('modernizr').style.width === '1px'; // true
     *   document.getElementById('modernizr2').style.width === '2px'; // true
     *   elem.firstChild === document.getElementById('modernizr2'); // true
     * }, 1);
     * ```
     *
     * By default, all of the additional elements have an ID of `modernizr[n]`, where
     * `n` is its index (e.g. the first additional, second overall is `#modernizr2`,
     * the second additional is `#modernizr3`, etc.).
     * If you want to have more meaningful IDs for your function, you can provide
     * them as the fourth argument, as an array of strings
     *
     * ```js
     * Modernizr.testStyles('#foo {width: 10px}; #bar {height: 20px}', function(elem) {
     *   elem.firstChild === document.getElementById('foo'); // true
     *   elem.lastChild === document.getElementById('bar'); // true
     * }, 2, ['foo', 'bar']);
     * ```
     *
     */
  
    var testStyles = ModernizrProto.testStyles = injectElementWithStyles;
    
  
    // Run each test
    testRunner();
  
    // Remove the "no-js" class if it exists
    setClasses(classes);
  
    delete ModernizrProto.addTest;
    delete ModernizrProto.addAsyncTest;
  
    // Run the things that are supposed to run after the tests
    for (var i = 0; i < Modernizr._q.length; i++) {
      Modernizr._q[i]();
    }
  
    // Leak Modernizr namespace
    window.Modernizr = Modernizr;
  
  
  ;
  
  })(window, document);