diff --git a/README.md b/README.md
index ba1aeb7..5c9de47 100644
--- a/README.md
+++ b/README.md
@@ -5,17 +5,12 @@
 [![dependencies](https://img.shields.io/david/static-dev/spike-css-standards.svg?style=flat-square)](https://david-dm.org/static-dev/spike-css-standards)
 [![coverage](https://img.shields.io/coveralls/static-dev/spike-css-standards.svg?style=flat-square)](https://coveralls.io/r/static-dev/spike-css-standards?branch=master)
 
-standard plugin pack for postcss
-
-> **Note:** This project is in early development, and versioning is a little different. [Read this](http://markup.im/#q4_cRZ1Q) for more details.
-
+A standard plugin pack for postcss
 
 ### Installation
 
 `npm install spike-css-standards -S`
 
-> **Note:** This project is compatible with node v6+ only
-
 ### Usage
 
 This is nothing more than a light wrapper around a postcss configuration object. Options are filtered into their appropriate plugins internally. All are optional.
@@ -28,18 +23,38 @@ const standards = cssStandards(/* options */)
 // returns { parser: 'xxx', plugins: ['xxx'] }
 
 postcss(standards.plugins)
-  .process(someCss, { parser: standards.parser })
+  .process(/* css string */, { parser: standards.parser })
   .then((res) => { console.log(res.content) })
 
 ```
 
 By default, the css standard plugin pack includes:
 
-- [sugarss](https://github.com/postcss/sugarss), provided as default parser
-- [postcss-import](https://github.com/postcss/postcss-import), default settings
-- [postcss-cssnext](http://cssnext.io/), default settings
-- [rucksack](https://simplaio.github.io/rucksack/), default settings
-- [cssnano](http://cssnano.co/), toggled with the `minify` option which is false by default
+- [sugarss](https://github.com/postcss/sugarss), whitespace-based html, similar to jade/pug
+- [postcss-import](https://github.com/postcss/postcss-import), like `require` for css
+- [rucksack](https://simplaio.github.io/rucksack/), collection of syntax sugar for css
+- [autoprefixer](https://github.com/postcss/autoprefixer), automatic vendor prefixing
+- [postcss-attribute-case-insensitive](https://github.com/Semigradsky/postcss-attribute-case-insensitive), allows [case insensitive attr selectors](https://www.w3.org/TR/selectors4/#attribute-case)
+- [postcss-calc](https://github.com/postcss/postcss-calc), reduces calc expression where possible
+- [postcss-color-function](https://github.com/postcss/postcss-color-function), polyfill for [color-mod function](https://drafts.csswg.org/css-color/#modifying-colors)
+- [postcss-color-gray](https://github.com/postcss/postcss-color-gray), polyfill for [gray function](https://drafts.csswg.org/css-color/#grays)
+- [postcss-color-hex-alpha](https://github.com/postcss/postcss-color-hex-alpha), polyfill for [rgba hex notations](https://github.com/postcss/postcss-color-hex-alpha)
+- [postcss-color-hsl](https://github.com/dmarchena/postcss-color-hsl), polyfill for [new hsl syntax](https://drafts.csswg.org/css-color/#the-hsl-notation)
+- [postcss-color-hwb](https://github.com/postcss/postcss-color-hwb), polyfill for [hue whiteness blackness function](https://drafts.csswg.org/css-color/#the-hwb-notation)
+- [postcss-color-rebeccapurple](https://github.com/postcss/postcss-color-rebeccapurple), polyfill for [rebeccapurple color](https://drafts.csswg.org/css-color/#valdef-color-rebeccapurple)
+- [postcss-color-rgb](https://github.com/dmarchena/postcss-color-rgb), polyfill for [css module level 4 rgb function](https://drafts.csswg.org/css-color/#funcdef-rgb)
+- [postcss-custom-media](https://github.com/postcss/postcss-custom-media), polyfill for [custom media queries](https://drafts.csswg.org/mediaqueries-5/#custom-mq)
+- [postcss-custom-properties](https://github.com/postcss/postcss-custom-properties), polyfill for [css variables](https://www.w3.org/TR/css-variables/)
+- [postcss-custom-selectors](https://github.com/postcss/postcss-custom-selectors), polyfill for [custom selectors](https://drafts.csswg.org/css-extensions/#custom-selectors)
+- [postcss-font-family-system-ui](https://github.com/JLHwung/postcss-font-family-system-ui), 
+- [postcss-font-variant](https://drafts.csswg.org/css-fonts-4/#system-ui-def), polyfill for generic [system-ui](https://github.com/JLHwung/postcss-font-family-system-ui) font definition
+- [postcss-image-set-polyfill](https://github.com/SuperOl3g/postcss-image-set-polyfill), polyfills [image-set](https://drafts.csswg.org/css-images-3/#image-set-notation) for resolution detection
+- [postcss-media-minmax](https://github.com/postcss/postcss-media-minmax), nice syntax sugar for media queries from [media queries level 4 spec](https://drafts.csswg.org/mediaqueries/#mq-range-context)
+- [postcss-nesting](https://github.com/jonathantneal/postcss-nesting), polyfill for [css nesting module level 3](http://tabatkins.github.io/specs/css-nesting/)
+- [postcss-pseudo-class-any-link](https://github.com/jonathantneal/postcss-pseudo-class-any-link), polyfills [:any-link pseudo-class](https://drafts.csswg.org/selectors/#any-link-pseudo)
+- [postcss-selector-matches](https://github.com/postcss/postcss-selector-matches), polyfills [:matches pseudo-class](https://drafts.csswg.org/selectors-4/#matches)
+- [postcss-selector-not](https://github.com/postcss/postcss-selector-not), polyfills [:not pseudo-class](https://drafts.csswg.org/selectors-4/#negation)
+- [cssnano](http://cssnano.co/), minifies css, toggled with the `minify` option which is false by default
 
 Any of these plugins can be customized by passing the [options](#options) described below. You can also add additional postCSS plugins (like the popular [`lost`](https://github.com/peterramsing/lost) grid, for example) on top of this package:
 
@@ -57,10 +72,30 @@ css.plugins.push(lost())
 | ---- | ----------- | ------- |
 | **root** | Root used to resolve `path`(s) from | |
 | **path** | A path to a folder or an array of paths, telling postcss-import where to look for sss or css files to `@import`. | |
-| **browsers** | Browser support provided to [autoprefixer](http://cssnext.io/usage/#browsers) | `> 1%, last 2 versions, Firefox ESR` |
-| **features** | Enable or disable [cssnext features](http://cssnext.io/usage/#features) | |
-| **warnForDuplicates** | Enable or disable [cssnext duplicate warnings](http://cssnext.io/usage/#warnforduplicates) | `true` |
 | **rucksack** | Options passed directly to [rucksack](http://simplaio.github.io/rucksack/docs/#options) | |
+| **postcssImport** | Options passed to [postcss-import](https://github.com/postcss/postcss-import) | |
+| **autoprefixer** | Options passed to [autoprefixer](https://github.com/postcss/autoprefixer) | |
+| **attributeCaseInsensitive** | Options passed to [postcss-attribute-case-insensitive](https://github.com/Semigradsky/postcss-attribute-case-insensitive) | |
+| **calc** | Options passed to [postcss-calc](https://github.com/postcss/postcss-calc) | |
+| **colorFunction** | Options passed to [postcss-color-function](https://github.com/postcss/postcss-color-function) | |
+| **colorGray** | Options passed to [postcss-color-gray](https://github.com/postcss/postcss-color-gray) | |
+| **colorHexAlpha** | Options passed to [postcss-color-hex-alpha](https://github.com/postcss/postcss-color-hex-alpha) | |
+| **colorHsl** | Options passed to [postcss-color-hsl](https://github.com/dmarchena/postcss-color-hsl) | |
+| **colorHwb** | Options passed to [postcss-color-hwb](https://github.com/postcss/postcss-color-hwb) | |
+| **colorRebeccapurple** | Options passed to [postcss-color-rebeccapurple](https://github.com/postcss/postcss-color-rebeccapurple) | |
+| **colorRgb** | Options passed to [postcss-color-rgb](https://github.com/dmarchena/postcss-color-rgb) | |
+| **customMedia** | Options passed to [postcss-custom-media](https://github.com/postcss/postcss-custom-media) | |
+| **customProperties** | Options passed to [postcss-custom-properties](https://github.com/postcss/postcss-custom-properties) | |
+| **customSelectors** | Options passed to [postcss-custom-selectors](https://github.com/postcss/postcss-custom-selectors) | |
+| **fontFamilySystemUi** | Options passed to [postcss-font-family-system-ui](https://github.com/JLHwung/postcss-font-family-system-ui) | |
+| **fontVariant** | Options passed to [postcss-font-variant](https://drafts.csswg.org/css-fonts-4/#system-ui-def) | |
+| **imageSet** | Options passed to [postcss-image-set-polyfill](https://github.com/SuperOl3g/postcss-image-set-polyfill) | |
+| **mediaQueriesRange** | Options passed to [postcss-media-minmax](https://github.com/postcss/postcss-media-minmax) | |
+| **nesting** | Options passed to [postcss-nesting](https://github.com/jonathantneal/postcss-nesting) | |
+| **pseudoClassAnyLink** | Options passed to [postcss-pseudo-class-any-link](https://github.com/jonathantneal/postcss-pseudo-class-any-link) | |
+| **pseudoClassMatches** | Options passed to [postcss-selector-matches](https://github.com/postcss/postcss-selector-matches) | |
+| **pseudoClassNot** | Options passed to [postcss-selector-not](https://github.com/postcss/postcss-selector-not) | |
+| **cssnano** | Options passed to [cssnano](http://cssnano.co/) | |
 | **parser** | custom css parser if desired. pass `false` to use the default css parser | `sugarss` |
 | **minify** | Minifies the css output by removing excess spaces and line breaks | `false` |
 | **appendPlugins** | Adds a single plugin or array of plugins after all the defaults | |
diff --git a/lib/index.js b/lib/index.js
index 4d70cb0..9a9b636 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -1,7 +1,27 @@
-const sugarss = require('sugarss')
+let sugarss = require('sugarss')
 let postcssImport = require('postcss-import')
-let cssnext = require('postcss-cssnext')
+let customProperties = require('postcss-custom-properties')
+let calc = require('postcss-calc')
+let imageSet = require('postcss-image-set')
+let nesting = require('postcss-nesting')
+let customMedia = require('postcss-custom-media')
+let mediaQueriesRange = require('postcss-media-minmax')
+let customSelectors = require('postcss-custom-selectors')
+let attributeCaseInsensitive = require('postcss-attribute-case-insensitive')
+let colorRebeccapurple = require('postcss-color-rebeccapurple')
+let colorHwb = require('postcss-color-hwb')
+let colorHsl = require('postcss-color-hsl')
+let colorRgb = require('postcss-color-rgb')
+let colorGray = require('postcss-color-gray')
+let colorHexAlpha = require('postcss-color-hex-alpha')
+let colorFunction = require('postcss-color-function')
+let fontFamilySystemUi = require('postcss-font-family-system-ui')
+let fontVariant = require('postcss-font-variant')
+let pseudoClassMatches = require('postcss-selector-matches')
+let pseudoClassNot = require('postcss-selector-not')
+let pseudoClassAnyLink = require('postcss-pseudo-class-any-link')
 let rucksack = require('rucksack-css')
+let autoprefixer = require('autoprefixer')
 
 /**
  * Primary export, formats options and returns an object with intelligent
@@ -25,12 +45,31 @@ module.exports = (options = {}) => {
 
   // standard options merge
   const importOpt = selectKeys(options, ['root', 'path'])
-  const cssnextOpt = selectKeys(options, ['browsers', 'features', 'warnForDuplicates'])
 
   // define default plugin list
   const plugins = [
     postcssImport(importOpt),
-    cssnext(cssnextOpt),
+    customProperties(options.customProperties),
+    calc(options.calc),
+    imageSet(options.imageSet),
+    nesting(options.nesting),
+    customMedia(options.customMedia),
+    mediaQueriesRange(options.mediaQueriesRange),
+    customSelectors(options.customSelectors),
+    attributeCaseInsensitive(options.attributeCaseInsensitive),
+    colorRebeccapurple(options.colorRebeccapurple),
+    colorHwb(options.colorHwb),
+    colorHsl(options.colorHsl),
+    colorRgb(options.colorRgb),
+    colorGray(options.colorGray),
+    colorHexAlpha(options.colorHexAlpha),
+    colorFunction(options.colorFunction),
+    fontFamilySystemUi(options.fontFamilySystemUi),
+    fontVariant(options.fontVariant),
+    pseudoClassMatches(options.pseudoClassMatches),
+    pseudoClassNot(options.pseudoClassNot),
+    pseudoClassAnyLink(options.pseudoClassAnyLink),
+    autoprefixer(options.autoprefixer),
     rucksack(options.rucksack)
   ]
 
@@ -44,7 +83,7 @@ module.exports = (options = {}) => {
   }
 
   // add cssnano if minify config present
-  if (options.minify) plugins.push(require('cssnano')())
+  if (options.minify) plugins.push(require('cssnano')(options.cssnano))
 
   return {parser, plugins}
 }
diff --git a/package.json b/package.json
index 5ad7399..fa5b7c9 100644
--- a/package.json
+++ b/package.json
@@ -8,9 +8,30 @@
   },
   "bugs": "https://github.com/static-dev/spike-css-standards/issues",
   "dependencies": {
+    "autoprefixer": "^7.1.1",
     "cssnano": "^3.7.4",
-    "postcss-cssnext": "^2.11.0",
+    "postcss-attribute-case-insensitive": "^2.0.0",
+    "postcss-calc": "^6.0.0",
+    "postcss-color-function": "^4.0.0",
+    "postcss-color-gray": "^4.0.0",
+    "postcss-color-hex-alpha": "^3.0.0",
+    "postcss-color-hsl": "^2.0.0",
+    "postcss-color-hwb": "^3.0.0",
+    "postcss-color-rebeccapurple": "^3.0.0",
+    "postcss-color-rgb": "^2.0.0",
+    "postcss-custom-media": "^6.0.0",
+    "postcss-custom-properties": "^6.0.1",
+    "postcss-custom-selectors": "^4.0.1",
+    "postcss-font-family-system-ui": "^2.0.1",
+    "postcss-font-variant": "^3.0.0",
+    "postcss-image-set": "^1.0.0",
+    "postcss-image-set-polyfill": "^0.3.5",
     "postcss-import": "^10.0.0",
+    "postcss-media-minmax": "^3.0.0",
+    "postcss-nesting": "^4.0.1",
+    "postcss-pseudo-class-any-link": "^4.0.0",
+    "postcss-selector-matches": "^3.0.1",
+    "postcss-selector-not": "^3.0.1",
     "rucksack-css": "^0.9.1",
     "sugarss": "^1.0.0"
   },
diff --git a/test/index.js b/test/index.js
index c988143..424b506 100644
--- a/test/index.js
+++ b/test/index.js
@@ -19,17 +19,155 @@ test('passes import opts correctly', (t) => {
   undo()
 })
 
-test('passes cssnext opts correctly', (t) => {
-  const undo = cssStandardsRewired.__set__('cssnext', (opts) => {
-    t.is(opts.browsers, 'test')
-    t.is(opts.features, 'test')
-    t.is(opts.warnForDuplicates, 'test')
+test('passes customProperties opts correctly', (t) => {
+  const undo = cssStandardsRewired.__set__('customProperties', (opts) => {
+    t.is(opts, 'test')
+  })
+  cssStandardsRewired({ customProperties: 'test' })
+  undo()
+})
+
+test('passes calc opts correctly', (t) => {
+  const undo = cssStandardsRewired.__set__('calc', (opts) => {
+    t.is(opts, 'test')
+  })
+  cssStandardsRewired({ calc: 'test' })
+  undo()
+})
+
+test('passes imageSet opts correctly', (t) => {
+  const undo = cssStandardsRewired.__set__('imageSet', (opts) => {
+    t.is(opts, 'test')
+  })
+  cssStandardsRewired({ imageSet: 'test' })
+  undo()
+})
+
+test('passes nesting opts correctly', (t) => {
+  const undo = cssStandardsRewired.__set__('nesting', (opts) => {
+    t.is(opts, 'test')
+  })
+  cssStandardsRewired({ nesting: 'test' })
+  undo()
+})
+
+test('passes mediaQueriesRange opts correctly', (t) => {
+  const undo = cssStandardsRewired.__set__('mediaQueriesRange', (opts) => {
+    t.is(opts, 'test')
+  })
+  cssStandardsRewired({ mediaQueriesRange: 'test' })
+  undo()
+})
+
+test('passes customSelectors opts correctly', (t) => {
+  const undo = cssStandardsRewired.__set__('customSelectors', (opts) => {
+    t.is(opts, 'test')
+  })
+  cssStandardsRewired({ customSelectors: 'test' })
+  undo()
+})
+
+test('passes attributeCaseInsensitive opts correctly', (t) => {
+  const undo = cssStandardsRewired.__set__('attributeCaseInsensitive', (opts) => {
+    t.is(opts, 'test')
+  })
+  cssStandardsRewired({ attributeCaseInsensitive: 'test' })
+  undo()
+})
+
+test('passes colorRebeccapurple opts correctly', (t) => {
+  const undo = cssStandardsRewired.__set__('colorRebeccapurple', (opts) => {
+    t.is(opts, 'test')
+  })
+  cssStandardsRewired({ colorRebeccapurple: 'test' })
+  undo()
+})
+
+test('passes colorHwb opts correctly', (t) => {
+  const undo = cssStandardsRewired.__set__('colorHwb', (opts) => {
+    t.is(opts, 'test')
+  })
+  cssStandardsRewired({ colorHwb: 'test' })
+  undo()
+})
+
+test('passes colorRgb opts correctly', (t) => {
+  const undo = cssStandardsRewired.__set__('colorRgb', (opts) => {
+    t.is(opts, 'test')
+  })
+  cssStandardsRewired({ colorRgb: 'test' })
+  undo()
+})
+
+test('passes colorGray opts correctly', (t) => {
+  const undo = cssStandardsRewired.__set__('colorGray', (opts) => {
+    t.is(opts, 'test')
   })
-  cssStandardsRewired({
-    browsers: 'test',
-    features: 'test',
-    warnForDuplicates: 'test'
+  cssStandardsRewired({ colorGray: 'test' })
+  undo()
+})
+
+test('passes colorHexAlpha opts correctly', (t) => {
+  const undo = cssStandardsRewired.__set__('colorHexAlpha', (opts) => {
+    t.is(opts, 'test')
+  })
+  cssStandardsRewired({ colorHexAlpha: 'test' })
+  undo()
+})
+
+test('passes colorFunction opts correctly', (t) => {
+  const undo = cssStandardsRewired.__set__('colorFunction', (opts) => {
+    t.is(opts, 'test')
+  })
+  cssStandardsRewired({ colorFunction: 'test' })
+  undo()
+})
+
+test('passes fontFamilySystemUi opts correctly', (t) => {
+  const undo = cssStandardsRewired.__set__('fontFamilySystemUi', (opts) => {
+    t.is(opts, 'test')
+  })
+  cssStandardsRewired({ fontFamilySystemUi: 'test' })
+  undo()
+})
+
+test('passes fontVariant opts correctly', (t) => {
+  const undo = cssStandardsRewired.__set__('fontVariant', (opts) => {
+    t.is(opts, 'test')
+  })
+  cssStandardsRewired({ fontVariant: 'test' })
+  undo()
+})
+
+test('passes pseudoClassMatches opts correctly', (t) => {
+  const undo = cssStandardsRewired.__set__('pseudoClassMatches', (opts) => {
+    t.is(opts, 'test')
+  })
+  cssStandardsRewired({ pseudoClassMatches: 'test' })
+  undo()
+})
+
+test('passes pseudoClassNot opts correctly', (t) => {
+  const undo = cssStandardsRewired.__set__('pseudoClassNot', (opts) => {
+    t.is(opts, 'test')
+  })
+  cssStandardsRewired({ pseudoClassNot: 'test' })
+  undo()
+})
+
+test('passes pseudoClassAnyLink opts correctly', (t) => {
+  const undo = cssStandardsRewired.__set__('pseudoClassAnyLink', (opts) => {
+    t.is(opts, 'test')
+  })
+  cssStandardsRewired({ pseudoClassAnyLink: 'test' })
+  undo()
+})
+
+test('passes autoprefixer opts correctly', (t) => {
+  const undo = cssStandardsRewired.__set__('autoprefixer', (opts) => {
+    t.is(opts, 'test')
   })
+  cssStandardsRewired({ autoprefixer: 'test' })
   undo()
 })
 
@@ -43,12 +181,12 @@ test('passes rucksack opts correctly', (t) => {
 
 test('default plugins working', (t) => {
   const out = cssStandards()
-  t.is(out.plugins.length, 3)
+  t.is(out.plugins.length, 23)
 })
 
 test('minify option working', (t) => {
   const out = cssStandards({ minify: true })
-  t.is(out.plugins.length, 4)
+  t.is(out.plugins.length, 24)
   t.is(out.plugins[out.plugins.length - 1].postcssPlugin, 'cssnano')
 })
 
diff --git a/yarn.lock b/yarn.lock
index 077ee3d..491a49b 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -219,7 +219,7 @@ auto-bind@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/auto-bind/-/auto-bind-1.1.0.tgz#93b864dc7ee01a326281775d5c75ca0a751e5961"
 
-autoprefixer@^6.0.0, autoprefixer@^6.0.2, autoprefixer@^6.3.1:
+autoprefixer@^6.0.0, autoprefixer@^6.3.1:
   version "6.7.7"
   resolved "https://registry.yarnpkg.com/autoprefixer/-/autoprefixer-6.7.7.tgz#1dbd1c835658e35ce3f9984099db00585c782014"
   dependencies:
@@ -230,6 +230,17 @@ autoprefixer@^6.0.0, autoprefixer@^6.0.2, autoprefixer@^6.3.1:
     postcss "^5.2.16"
     postcss-value-parser "^3.2.3"
 
+autoprefixer@^7.1.1:
+  version "7.1.1"
+  resolved "https://registry.yarnpkg.com/autoprefixer/-/autoprefixer-7.1.1.tgz#97bc854c7d0b979f8d6489de547a0d17fb307f6d"
+  dependencies:
+    browserslist "^2.1.3"
+    caniuse-lite "^1.0.30000670"
+    normalize-range "^0.1.2"
+    num2fraction "^1.2.2"
+    postcss "^6.0.1"
+    postcss-value-parser "^3.2.3"
+
 ava-init@^0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/ava-init/-/ava-init-0.2.0.tgz#9304c8b4c357d66e3dfdae1fbff47b1199d5c55d"
@@ -693,6 +704,13 @@ browserslist@^1.0.0, browserslist@^1.3.6, browserslist@^1.5.2, browserslist@^1.7
     caniuse-db "^1.0.30000639"
     electron-to-chromium "^1.2.7"
 
+browserslist@^2.1.3:
+  version "2.1.5"
+  resolved "https://registry.yarnpkg.com/browserslist/-/browserslist-2.1.5.tgz#e882550df3d1cd6d481c1a3e0038f2baf13a4711"
+  dependencies:
+    caniuse-lite "^1.0.30000684"
+    electron-to-chromium "^1.3.14"
+
 buf-compare@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/buf-compare/-/buf-compare-1.0.1.tgz#fef28da8b8113a0a0db4430b0b6467b69730b34a"
@@ -755,7 +773,7 @@ camelcase@^4.0.0, camelcase@^4.1.0:
   version "4.1.0"
   resolved "https://registry.yarnpkg.com/camelcase/-/camelcase-4.1.0.tgz#d545635be1e33c542649c69173e5de6acfae34dd"
 
-caniuse-api@^1.5.2, caniuse-api@^1.5.3:
+caniuse-api@^1.5.2:
   version "1.6.1"
   resolved "https://registry.yarnpkg.com/caniuse-api/-/caniuse-api-1.6.1.tgz#b534e7c734c4f81ec5fbe8aca2ad24354b962c6c"
   dependencies:
@@ -768,6 +786,10 @@ caniuse-db@^1.0.30000529, caniuse-db@^1.0.30000634, caniuse-db@^1.0.30000639:
   version "1.0.30000680"
   resolved "https://registry.yarnpkg.com/caniuse-db/-/caniuse-db-1.0.30000680.tgz#d76ebeaaeb82e3d9952bfdc5c231c4f83cd48144"
 
+caniuse-lite@^1.0.30000670, caniuse-lite@^1.0.30000684:
+  version "1.0.30000692"
+  resolved "https://registry.yarnpkg.com/caniuse-lite/-/caniuse-lite-1.0.30000692.tgz#34600fd7152352d85a47f4662a3b51b02d8b646f"
+
 capture-stack-trace@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/capture-stack-trace/-/capture-stack-trace-1.0.0.tgz#4a6fa07399c26bba47f0b2496b4d0fb408c5550d"
@@ -919,11 +941,7 @@ code-point-at@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/code-point-at/-/code-point-at-1.1.0.tgz#0d070b4d043a5bea33a2f1a40e2edb3d9a4ccf77"
 
-color-convert@^0.5.3:
-  version "0.5.3"
-  resolved "https://registry.yarnpkg.com/color-convert/-/color-convert-0.5.3.tgz#bdb6c69ce660fadffe0b0007cc447e1b9f7282bd"
-
-color-convert@^1.0.0, color-convert@^1.3.0:
+color-convert@^1.0.0, color-convert@^1.3.0, color-convert@^1.8.2:
   version "1.9.0"
   resolved "https://registry.yarnpkg.com/color-convert/-/color-convert-1.9.0.tgz#1accf97dd739b983bf994d56fec8f95853641b7a"
   dependencies:
@@ -939,14 +957,14 @@ color-string@^0.3.0:
   dependencies:
     color-name "^1.0.0"
 
-color@^0.10.1:
-  version "0.10.1"
-  resolved "https://registry.yarnpkg.com/color/-/color-0.10.1.tgz#c04188df82a209ddebccecdacd3ec320f193739f"
+color-string@^1.4.0:
+  version "1.5.2"
+  resolved "https://registry.yarnpkg.com/color-string/-/color-string-1.5.2.tgz#26e45814bc3c9a7cbd6751648a41434514a773a9"
   dependencies:
-    color-convert "^0.5.3"
-    color-string "^0.3.0"
+    color-name "^1.0.0"
+    simple-swizzle "^0.2.2"
 
-color@^0.11.0, color@^0.11.3, color@^0.11.4:
+color@^0.11.0:
   version "0.11.4"
   resolved "https://registry.yarnpkg.com/color/-/color-0.11.4.tgz#6d7b5c74fb65e841cd48792ad1ed5e07b904d764"
   dependencies:
@@ -954,6 +972,13 @@ color@^0.11.0, color@^0.11.3, color@^0.11.4:
     color-convert "^1.3.0"
     color-string "^0.3.0"
 
+color@^1.0.3:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/color/-/color-1.0.3.tgz#e48e832d85f14ef694fb468811c2d5cfe729b55d"
+  dependencies:
+    color-convert "^1.8.2"
+    color-string "^1.4.0"
+
 colormin@^1.0.5:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/colormin/-/colormin-1.1.2.tgz#ea2f7420a72b96881a38aae59ec124a6f7298133"
@@ -1080,7 +1105,7 @@ crypto-random-string@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/crypto-random-string/-/crypto-random-string-1.0.0.tgz#a230f64f568310e1498009940790ec99545bca7e"
 
-css-color-function@^1.2.0:
+css-color-function@^1.3.0:
   version "1.3.0"
   resolved "https://registry.yarnpkg.com/css-color-function/-/css-color-function-1.3.0.tgz#72c767baf978f01b8a8a94f42f17ba5d22a776fc"
   dependencies:
@@ -1093,6 +1118,10 @@ css-color-names@0.0.4:
   version "0.0.4"
   resolved "https://registry.yarnpkg.com/css-color-names/-/css-color-names-0.0.4.tgz#808adc2e79cf84738069b646cb20ec27beb629e0"
 
+css-unit-converter@^1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/css-unit-converter/-/css-unit-converter-1.1.1.tgz#d9b9281adcfd8ced935bdbaba83786897f64e996"
+
 cssnano@^3.7.4:
   version "3.10.0"
   resolved "https://registry.yarnpkg.com/cssnano/-/cssnano-3.10.0.tgz#4f38f6cea2b9b17fa01490f23f1dc68ea65c1c38"
@@ -1291,9 +1320,9 @@ ecc-jsbn@~0.1.1:
   dependencies:
     jsbn "~0.1.0"
 
-electron-to-chromium@^1.2.7:
-  version "1.3.13"
-  resolved "https://registry.yarnpkg.com/electron-to-chromium/-/electron-to-chromium-1.3.13.tgz#1b3a5eace6e087bb5e257a100b0cbfe81b2891fc"
+electron-to-chromium@^1.2.7, electron-to-chromium@^1.3.14:
+  version "1.3.14"
+  resolved "https://registry.yarnpkg.com/electron-to-chromium/-/electron-to-chromium-1.3.14.tgz#64af0f9efd3c3c6acd57d71f83b49ca7ee9c4b43"
 
 empower-core@^0.6.1:
   version "0.6.2"
@@ -1359,6 +1388,10 @@ es6-map@^0.1.3:
     es6-symbol "~3.1.1"
     event-emitter "~0.3.5"
 
+es6-promise@~2.3.0:
+  version "2.3.0"
+  resolved "https://registry.yarnpkg.com/es6-promise/-/es6-promise-2.3.0.tgz#96edb9f2fdb01995822b263dd8aadab6748181bc"
+
 es6-set@~0.1.5:
   version "0.1.5"
   resolved "https://registry.yarnpkg.com/es6-set/-/es6-set-0.1.5.tgz#d2b3ec5d4d800ced818db538d28974db0a73ccb1"
@@ -2103,6 +2136,10 @@ is-arrayish@^0.2.1:
   version "0.2.1"
   resolved "https://registry.yarnpkg.com/is-arrayish/-/is-arrayish-0.2.1.tgz#77c99840527aa8ecb1a8ba697b80645a7a926a9d"
 
+is-arrayish@^0.3.1:
+  version "0.3.1"
+  resolved "https://registry.yarnpkg.com/is-arrayish/-/is-arrayish-0.3.1.tgz#c2dfc386abaa0c3e33c48db3fe87059e69065efd"
+
 is-binary-path@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/is-binary-path/-/is-binary-path-1.0.1.tgz#75f16642b480f187a711c814161fd3a4a7655898"
@@ -2426,7 +2463,7 @@ jest-validate@^19.0.2:
     leven "^2.0.0"
     pretty-format "^19.0.0"
 
-js-base64@^2.1.9:
+js-base64@^2.1.9, js-base64@~2.1.8:
   version "2.1.9"
   resolved "https://registry.yarnpkg.com/js-base64/-/js-base64-2.1.9.tgz#f0e80ae039a4bd654b5f281fc93f04a914a7fcce"
 
@@ -2591,10 +2628,6 @@ locate-path@^2.0.0:
     p-locate "^2.0.0"
     path-exists "^3.0.0"
 
-lodash._reinterpolate@~3.0.0:
-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/lodash._reinterpolate/-/lodash._reinterpolate-3.0.0.tgz#0ccf2d89166af03b3663c796538b75ac6e114d9d"
-
 lodash.clonedeep@^4.5.0:
   version "4.5.0"
   resolved "https://registry.yarnpkg.com/lodash.clonedeep/-/lodash.clonedeep-4.5.0.tgz#e23f3f9c4f8fbdde872529c1071857a086e5ccef"
@@ -2635,19 +2668,6 @@ lodash.merge@^4.6.0:
   version "4.6.0"
   resolved "https://registry.yarnpkg.com/lodash.merge/-/lodash.merge-4.6.0.tgz#69884ba144ac33fe699737a6086deffadd0f89c5"
 
-lodash.template@^4.2.4:
-  version "4.4.0"
-  resolved "https://registry.yarnpkg.com/lodash.template/-/lodash.template-4.4.0.tgz#e73a0385c8355591746e020b99679c690e68fba0"
-  dependencies:
-    lodash._reinterpolate "~3.0.0"
-    lodash.templatesettings "^4.0.0"
-
-lodash.templatesettings@^4.0.0:
-  version "4.1.0"
-  resolved "https://registry.yarnpkg.com/lodash.templatesettings/-/lodash.templatesettings-4.1.0.tgz#2b4d4e95ba440d915ff08bc899e4553666713316"
-  dependencies:
-    lodash._reinterpolate "~3.0.0"
-
 lodash.uniq@^4.5.0:
   version "4.5.0"
   resolved "https://registry.yarnpkg.com/lodash.uniq/-/lodash.uniq-4.5.0.tgz#d0225373aeb652adc1bc82e4945339a842754773"
@@ -2996,10 +3016,6 @@ once@^1.3.0, once@^1.3.3:
   dependencies:
     wrappy "1"
 
-onecolor@~2.4.0:
-  version "2.4.2"
-  resolved "https://registry.yarnpkg.com/onecolor/-/onecolor-2.4.2.tgz#a53ec3ff171c3446016dd5210d1a1b544bf7d874"
-
 onetime@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/onetime/-/onetime-1.1.0.tgz#a1f7838f8314c516f05ecefcbc4ccfe04b4ed789"
@@ -3231,13 +3247,6 @@ pkg-up@^1.0.0:
   dependencies:
     find-up "^1.0.0"
 
-pleeease-filters@^3.0.0:
-  version "3.0.1"
-  resolved "https://registry.yarnpkg.com/pleeease-filters/-/pleeease-filters-3.0.1.tgz#4dfe0e8f1046613517c64b728bc80608a7ebf22f"
-  dependencies:
-    onecolor "~2.4.0"
-    postcss "^5.0.4"
-
 plur@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/plur/-/plur-1.0.0.tgz#db85c6814f5e5e5a3b49efc28d604fec62975156"
@@ -3258,21 +3267,14 @@ postcss-alias@^1.0.0:
   dependencies:
     postcss "^5.0.0"
 
-postcss-apply@^0.3.0:
-  version "0.3.0"
-  resolved "https://registry.yarnpkg.com/postcss-apply/-/postcss-apply-0.3.0.tgz#a2f37c5bdfa881e4c15f4f245ec0cd96dd2e70d5"
-  dependencies:
-    balanced-match "^0.4.1"
-    postcss "^5.0.21"
-
-postcss-attribute-case-insensitive@^1.0.1:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/postcss-attribute-case-insensitive/-/postcss-attribute-case-insensitive-1.0.1.tgz#ceb73777e106167eb233f1938c9bd9f2e697308d"
+postcss-attribute-case-insensitive@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/postcss-attribute-case-insensitive/-/postcss-attribute-case-insensitive-2.0.0.tgz#94dc422c8f90997f16bd33a3654bbbec084963b4"
   dependencies:
-    postcss "^5.1.1"
-    postcss-selector-parser "^2.2.0"
+    postcss "^6.0.0"
+    postcss-selector-parser "^2.2.3"
 
-postcss-calc@^5.0.0, postcss-calc@^5.2.0:
+postcss-calc@^5.2.0:
   version "5.3.1"
   resolved "https://registry.yarnpkg.com/postcss-calc/-/postcss-calc-5.3.1.tgz#77bae7ca928ad85716e2fda42f261bf7c1d65b5e"
   dependencies:
@@ -3280,67 +3282,76 @@ postcss-calc@^5.0.0, postcss-calc@^5.2.0:
     postcss-message-helpers "^2.0.0"
     reduce-css-calc "^1.2.6"
 
+postcss-calc@^6.0.0:
+  version "6.0.0"
+  resolved "https://registry.yarnpkg.com/postcss-calc/-/postcss-calc-6.0.0.tgz#b681b279c6d24fbe0e33ed9045803705445d613b"
+  dependencies:
+    css-unit-converter "^1.1.1"
+    postcss "^6.0.0"
+    postcss-selector-parser "^2.2.2"
+    reduce-css-calc "^2.0.0"
+
 postcss-clearfix@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/postcss-clearfix/-/postcss-clearfix-1.0.0.tgz#afec6a0e01d25dac36a54adb89ffd4bfe1d219af"
   dependencies:
     postcss "^5.0"
 
-postcss-color-function@^2.0.0:
-  version "2.0.1"
-  resolved "https://registry.yarnpkg.com/postcss-color-function/-/postcss-color-function-2.0.1.tgz#9ad226f550e8a7c7f8b8a77860545b6dd7f55241"
+postcss-color-function@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/postcss-color-function/-/postcss-color-function-4.0.0.tgz#7e0106f4f6a1ecb1ad5b3a8553ace5e828aae187"
   dependencies:
-    css-color-function "^1.2.0"
-    postcss "^5.0.4"
+    css-color-function "^1.3.0"
+    postcss "^6.0.1"
     postcss-message-helpers "^2.0.0"
     postcss-value-parser "^3.3.0"
 
-postcss-color-gray@^3.0.0:
-  version "3.0.1"
-  resolved "https://registry.yarnpkg.com/postcss-color-gray/-/postcss-color-gray-3.0.1.tgz#74432ede66dd83b1d1363565c68b376e18ff6770"
+postcss-color-gray@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/postcss-color-gray/-/postcss-color-gray-4.0.0.tgz#681bf305097dd66bfef0e1e6282d5d99b5acc95d"
   dependencies:
-    color "^0.11.3"
-    postcss "^5.0.4"
+    color "^1.0.3"
+    postcss "^6.0.1"
     postcss-message-helpers "^2.0.0"
-    reduce-function-call "^1.0.1"
+    reduce-function-call "^1.0.2"
 
-postcss-color-hex-alpha@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/postcss-color-hex-alpha/-/postcss-color-hex-alpha-2.0.0.tgz#44fd6ecade66028648c881cb6504cdcbfdc6cd09"
+postcss-color-hex-alpha@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/postcss-color-hex-alpha/-/postcss-color-hex-alpha-3.0.0.tgz#1e53e6c8acb237955e8fd08b7ecdb1b8b8309f95"
   dependencies:
-    color "^0.10.1"
-    postcss "^5.0.4"
+    color "^1.0.3"
+    postcss "^6.0.1"
     postcss-message-helpers "^2.0.0"
 
-postcss-color-hsl@^1.0.5:
-  version "1.0.5"
-  resolved "https://registry.yarnpkg.com/postcss-color-hsl/-/postcss-color-hsl-1.0.5.tgz#f53bb1c348310ce307ad89e3181a864738b5e687"
+postcss-color-hsl@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/postcss-color-hsl/-/postcss-color-hsl-2.0.0.tgz#12703666fa310430e3f30a454dac1386317d5844"
   dependencies:
-    postcss "^5.2.0"
+    postcss "^6.0.1"
     postcss-value-parser "^3.3.0"
     units-css "^0.4.0"
 
-postcss-color-hwb@^2.0.0:
-  version "2.0.1"
-  resolved "https://registry.yarnpkg.com/postcss-color-hwb/-/postcss-color-hwb-2.0.1.tgz#d63afaf9b70cb595f900a29c9fe57bf2a32fabec"
+postcss-color-hwb@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/postcss-color-hwb/-/postcss-color-hwb-3.0.0.tgz#3402b19ef4d8497540c1fb5072be9863ca95571e"
   dependencies:
-    color "^0.11.4"
-    postcss "^5.0.4"
+    color "^1.0.3"
+    postcss "^6.0.1"
     postcss-message-helpers "^2.0.0"
-    reduce-function-call "^1.0.1"
+    reduce-function-call "^1.0.2"
 
-postcss-color-rebeccapurple@^2.0.0:
-  version "2.0.1"
-  resolved "https://registry.yarnpkg.com/postcss-color-rebeccapurple/-/postcss-color-rebeccapurple-2.0.1.tgz#74c6444e7cbb7d85613b5f7286df7a491608451c"
+postcss-color-rebeccapurple@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/postcss-color-rebeccapurple/-/postcss-color-rebeccapurple-3.0.0.tgz#eebaf03d363b4300b96792bd3081c19ed66513d3"
   dependencies:
-    color "^0.11.4"
-    postcss "^5.0.4"
+    postcss "^6.0.1"
+    postcss-value-parser "^3.3.0"
 
-postcss-color-rgb@^1.1.4:
-  version "1.1.4"
-  resolved "https://registry.yarnpkg.com/postcss-color-rgb/-/postcss-color-rgb-1.1.4.tgz#f29243e22e8e8c13434474092372d4ce605be8bc"
+postcss-color-rgb@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/postcss-color-rgb/-/postcss-color-rgb-2.0.0.tgz#14539c8a7131494b482e0dd1cc265ff6514b5263"
   dependencies:
-    postcss "^5.2.0"
+    postcss "^6.0.1"
     postcss-value-parser "^3.3.0"
 
 postcss-color-rgba-fallback@^2.0.0:
@@ -3366,62 +3377,25 @@ postcss-convert-values@^2.3.4:
     postcss "^5.0.11"
     postcss-value-parser "^3.1.2"
 
-postcss-cssnext@^2.11.0:
-  version "2.11.0"
-  resolved "https://registry.yarnpkg.com/postcss-cssnext/-/postcss-cssnext-2.11.0.tgz#31e68f001e409604da703b66de14b8b8c8c9f2b1"
+postcss-custom-media@^6.0.0:
+  version "6.0.0"
+  resolved "https://registry.yarnpkg.com/postcss-custom-media/-/postcss-custom-media-6.0.0.tgz#be532784110ecb295044fb5395a18006eb21a737"
   dependencies:
-    autoprefixer "^6.0.2"
-    caniuse-api "^1.5.3"
-    chalk "^1.1.1"
-    pixrem "^3.0.0"
-    pleeease-filters "^3.0.0"
-    postcss "^5.0.4"
-    postcss-apply "^0.3.0"
-    postcss-attribute-case-insensitive "^1.0.1"
-    postcss-calc "^5.0.0"
-    postcss-color-function "^2.0.0"
-    postcss-color-gray "^3.0.0"
-    postcss-color-hex-alpha "^2.0.0"
-    postcss-color-hsl "^1.0.5"
-    postcss-color-hwb "^2.0.0"
-    postcss-color-rebeccapurple "^2.0.0"
-    postcss-color-rgb "^1.1.4"
-    postcss-color-rgba-fallback "^2.0.0"
-    postcss-custom-media "^5.0.0"
-    postcss-custom-properties "^5.0.0"
-    postcss-custom-selectors "^3.0.0"
-    postcss-font-family-system-ui "^1.0.1"
-    postcss-font-variant "^2.0.0"
-    postcss-image-set-polyfill "^0.3.3"
-    postcss-initial "^1.3.1"
-    postcss-media-minmax "^2.1.0"
-    postcss-nesting "^2.0.5"
-    postcss-pseudo-class-any-link "^1.0.0"
-    postcss-pseudoelements "^3.0.0"
-    postcss-replace-overflow-wrap "^1.0.0"
-    postcss-selector-matches "^2.0.0"
-    postcss-selector-not "^2.0.0"
-
-postcss-custom-media@^5.0.0:
-  version "5.0.1"
-  resolved "https://registry.yarnpkg.com/postcss-custom-media/-/postcss-custom-media-5.0.1.tgz#138d25a184bf2eb54de12d55a6c01c30a9d8bd81"
-  dependencies:
-    postcss "^5.0.0"
+    postcss "^6.0.1"
 
-postcss-custom-properties@^5.0.0:
-  version "5.0.2"
-  resolved "https://registry.yarnpkg.com/postcss-custom-properties/-/postcss-custom-properties-5.0.2.tgz#9719d78f2da9cf9f53810aebc23d4656130aceb1"
+postcss-custom-properties@^6.0.1:
+  version "6.0.1"
+  resolved "https://registry.yarnpkg.com/postcss-custom-properties/-/postcss-custom-properties-6.0.1.tgz#db62a42ff6e62f2a9b14c820993c564f224120ed"
   dependencies:
     balanced-match "^0.4.2"
-    postcss "^5.0.0"
+    postcss "^6.0.1"
 
-postcss-custom-selectors@^3.0.0:
-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/postcss-custom-selectors/-/postcss-custom-selectors-3.0.0.tgz#8f81249f5ed07a8d0917cf6a39fe5b056b7f96ac"
+postcss-custom-selectors@^4.0.1:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/postcss-custom-selectors/-/postcss-custom-selectors-4.0.1.tgz#781382f94c52e727ef5ca4776ea2adf49a611382"
   dependencies:
-    balanced-match "^0.2.0"
-    postcss "^5.0.0"
-    postcss-selector-matches "^2.0.0"
+    postcss "^6.0.1"
+    postcss-selector-matches "^3.0.0"
 
 postcss-discard-comments@^2.0.4:
   version "2.0.4"
@@ -3467,19 +3441,19 @@ postcss-filter-plugins@^2.0.0:
     postcss "^5.0.4"
     uniqid "^4.0.0"
 
-postcss-font-family-system-ui@^1.0.1:
-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/postcss-font-family-system-ui/-/postcss-font-family-system-ui-1.0.2.tgz#3e1a5e3fb7e31e5e9e71439ccb0e8014556927c7"
+postcss-font-family-system-ui@^2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/postcss-font-family-system-ui/-/postcss-font-family-system-ui-2.0.1.tgz#318a075fdcb84b864aa823a51935ef0a5872e911"
   dependencies:
     lodash "^4.17.4"
-    postcss "^5.2.12"
+    postcss "^6.0.1"
     postcss-value-parser "^3.3.0"
 
-postcss-font-variant@^2.0.0:
-  version "2.0.1"
-  resolved "https://registry.yarnpkg.com/postcss-font-variant/-/postcss-font-variant-2.0.1.tgz#7ca29103f59fa02ca3ace2ca22b2f756853d4ef8"
+postcss-font-variant@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/postcss-font-variant/-/postcss-font-variant-3.0.0.tgz#08ccc88f6050ba82ed8ef2cc76c0c6a6b41f183e"
   dependencies:
-    postcss "^5.0.4"
+    postcss "^6.0.1"
 
 postcss-fontpath@^0.3.0:
   version "0.3.0"
@@ -3494,13 +3468,19 @@ postcss-hexrgba@^0.2.0:
   dependencies:
     postcss "^5.0.0"
 
-postcss-image-set-polyfill@^0.3.3:
-  version "0.3.4"
-  resolved "https://registry.yarnpkg.com/postcss-image-set-polyfill/-/postcss-image-set-polyfill-0.3.4.tgz#46e08405098574eb5090c6af98c4bc99d73f5326"
+postcss-image-set-polyfill@^0.3.5:
+  version "0.3.5"
+  resolved "https://registry.yarnpkg.com/postcss-image-set-polyfill/-/postcss-image-set-polyfill-0.3.5.tgz#0f193413700cf1f82bd39066ef016d65a4a18181"
   dependencies:
     postcss "^6.0.1"
     postcss-media-query-parser "^0.2.3"
 
+postcss-image-set@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/postcss-image-set/-/postcss-image-set-1.0.0.tgz#7d28ff6292093135d5bd9e40bc593ec16b70f2db"
+  dependencies:
+    postcss "^4.1.0"
+
 postcss-import@^10.0.0:
   version "10.0.0"
   resolved "https://registry.yarnpkg.com/postcss-import/-/postcss-import-10.0.0.tgz#4c85c97b099136cc5ea0240dc1dfdbfde4e2ebbe"
@@ -3511,24 +3491,17 @@ postcss-import@^10.0.0:
     read-cache "^1.0.0"
     resolve "^1.1.7"
 
-postcss-initial@^1.3.1:
-  version "1.5.3"
-  resolved "https://registry.yarnpkg.com/postcss-initial/-/postcss-initial-1.5.3.tgz#20c3e91c96822ddb1bed49508db96d56bac377d0"
-  dependencies:
-    lodash.template "^4.2.4"
-    postcss "^5.0.19"
-
 postcss-input-style@^0.3.0:
   version "0.3.0"
   resolved "https://registry.yarnpkg.com/postcss-input-style/-/postcss-input-style-0.3.0.tgz#e3b4fdb0aa441bed1930cbb44d8ad5634cf38540"
   dependencies:
     postcss "^5.0.0"
 
-postcss-media-minmax@^2.1.0:
-  version "2.1.2"
-  resolved "https://registry.yarnpkg.com/postcss-media-minmax/-/postcss-media-minmax-2.1.2.tgz#444c5cf8926ab5e4fd8a2509e9297e751649cdf8"
+postcss-media-minmax@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/postcss-media-minmax/-/postcss-media-minmax-3.0.0.tgz#675256037a43ef40bc4f0760bfd06d4dc69d48d2"
   dependencies:
-    postcss "^5.0.4"
+    postcss "^6.0.1"
 
 postcss-media-query-parser@^0.2.3:
   version "0.2.3"
@@ -3595,11 +3568,11 @@ postcss-minify-selectors@^2.0.4:
     postcss "^5.0.14"
     postcss-selector-parser "^2.0.0"
 
-postcss-nesting@^2.0.5:
-  version "2.3.1"
-  resolved "https://registry.yarnpkg.com/postcss-nesting/-/postcss-nesting-2.3.1.tgz#94a6b6a4ef707fbec20a87fee5c957759b4e01cf"
+postcss-nesting@^4.0.1:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/postcss-nesting/-/postcss-nesting-4.0.1.tgz#8fc2ce40cbfcfab7ee24e7b68fb6ebe84b641469"
   dependencies:
-    postcss "^5.0.19"
+    postcss "^6.0.1"
 
 postcss-normalize-charset@^1.1.0:
   version "1.1.1"
@@ -3641,12 +3614,12 @@ postcss-position@^0.5.0:
   dependencies:
     postcss "^5.0.0"
 
-postcss-pseudo-class-any-link@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/postcss-pseudo-class-any-link/-/postcss-pseudo-class-any-link-1.0.0.tgz#903239196401d335fe73ac756186fa62e693af26"
+postcss-pseudo-class-any-link@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/postcss-pseudo-class-any-link/-/postcss-pseudo-class-any-link-4.0.0.tgz#9152a0613d3450720513e8892854bae42d0ee68e"
   dependencies:
-    postcss "^5.0.3"
-    postcss-selector-parser "^1.1.4"
+    postcss "^6.0.1"
+    postcss-selector-parser "^2.2.3"
 
 postcss-pseudoelements@^3.0.0:
   version "3.0.0"
@@ -3682,12 +3655,6 @@ postcss-reduce-transforms@^1.0.3:
     postcss "^5.0.8"
     postcss-value-parser "^3.0.1"
 
-postcss-replace-overflow-wrap@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/postcss-replace-overflow-wrap/-/postcss-replace-overflow-wrap-1.0.0.tgz#f0a03b31eab9636a6936bfd210e2aef1b434a643"
-  dependencies:
-    postcss "^5.0.16"
-
 postcss-reporter@^1.2.1:
   version "1.4.1"
   resolved "https://registry.yarnpkg.com/postcss-reporter/-/postcss-reporter-1.4.1.tgz#c136f0a5b161915f379dd3765c61075f7e7b9af2"
@@ -3712,29 +3679,21 @@ postcss-responsive-type@^0.5.0:
   dependencies:
     postcss "^5.0.0"
 
-postcss-selector-matches@^2.0.0:
-  version "2.0.5"
-  resolved "https://registry.yarnpkg.com/postcss-selector-matches/-/postcss-selector-matches-2.0.5.tgz#fa0f43be57b68e77aa4cd11807023492a131027f"
+postcss-selector-matches@^3.0.0, postcss-selector-matches@^3.0.1:
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/postcss-selector-matches/-/postcss-selector-matches-3.0.1.tgz#e5634011e13950881861bbdd58c2d0111ffc96ab"
   dependencies:
     balanced-match "^0.4.2"
-    postcss "^5.0.0"
-
-postcss-selector-not@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/postcss-selector-not/-/postcss-selector-not-2.0.0.tgz#c73ad21a3f75234bee7fee269e154fd6a869798d"
-  dependencies:
-    balanced-match "^0.2.0"
-    postcss "^5.0.0"
+    postcss "^6.0.1"
 
-postcss-selector-parser@^1.1.4:
-  version "1.3.3"
-  resolved "https://registry.yarnpkg.com/postcss-selector-parser/-/postcss-selector-parser-1.3.3.tgz#d2ee19df7a64f8ef21c1a71c86f7d4835c88c281"
+postcss-selector-not@^3.0.1:
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/postcss-selector-not/-/postcss-selector-not-3.0.1.tgz#2e4db2f0965336c01e7cec7db6c60dff767335d9"
   dependencies:
-    flatten "^1.0.2"
-    indexes-of "^1.0.1"
-    uniq "^1.0.1"
+    balanced-match "^0.4.2"
+    postcss "^6.0.1"
 
-postcss-selector-parser@^2.0.0, postcss-selector-parser@^2.2.0, postcss-selector-parser@^2.2.2:
+postcss-selector-parser@^2.0.0, postcss-selector-parser@^2.2.2, postcss-selector-parser@^2.2.3:
   version "2.2.3"
   resolved "https://registry.yarnpkg.com/postcss-selector-parser/-/postcss-selector-parser-2.2.3.tgz#f9437788606c3c9acee16ffe8d8b16297f27bb90"
   dependencies:
@@ -3783,7 +3742,15 @@ postcss-zindex@^2.0.1:
     postcss "^5.0.4"
     uniqs "^2.0.0"
 
-postcss@^5.0, postcss@^5.0.0, postcss@^5.0.10, postcss@^5.0.11, postcss@^5.0.12, postcss@^5.0.13, postcss@^5.0.14, postcss@^5.0.16, postcss@^5.0.19, postcss@^5.0.2, postcss@^5.0.21, postcss@^5.0.3, postcss@^5.0.4, postcss@^5.0.5, postcss@^5.0.8, postcss@^5.1.1, postcss@^5.2.0, postcss@^5.2.12, postcss@^5.2.16:
+postcss@^4.1.0:
+  version "4.1.16"
+  resolved "https://registry.yarnpkg.com/postcss/-/postcss-4.1.16.tgz#4c449b4c8af9df3caf6d37f8e1e575d0361758dc"
+  dependencies:
+    es6-promise "~2.3.0"
+    js-base64 "~2.1.8"
+    source-map "~0.4.2"
+
+postcss@^5.0, postcss@^5.0.0, postcss@^5.0.10, postcss@^5.0.11, postcss@^5.0.12, postcss@^5.0.13, postcss@^5.0.14, postcss@^5.0.16, postcss@^5.0.2, postcss@^5.0.4, postcss@^5.0.5, postcss@^5.0.8, postcss@^5.2.16:
   version "5.2.17"
   resolved "https://registry.yarnpkg.com/postcss/-/postcss-5.2.17.tgz#cf4f597b864d65c8a492b2eabe9d706c879c388b"
   dependencies:
@@ -3979,7 +3946,14 @@ reduce-css-calc@^1.2.6, reduce-css-calc@^1.2.7:
     math-expression-evaluator "^1.2.14"
     reduce-function-call "^1.0.1"
 
-reduce-function-call@^1.0.1:
+reduce-css-calc@^2.0.0:
+  version "2.0.5"
+  resolved "https://registry.yarnpkg.com/reduce-css-calc/-/reduce-css-calc-2.0.5.tgz#33c97838c5d4c711a5c14ef85ce4fde41483f7bd"
+  dependencies:
+    css-unit-converter "^1.1.1"
+    postcss-value-parser "^3.3.0"
+
+reduce-function-call@^1.0.1, reduce-function-call@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/reduce-function-call/-/reduce-function-call-1.0.2.tgz#5a200bf92e0e37751752fe45b0ab330fd4b6be99"
   dependencies:
@@ -4265,6 +4239,12 @@ signal-exit@^3.0.0, signal-exit@^3.0.1, signal-exit@^3.0.2:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/signal-exit/-/signal-exit-3.0.2.tgz#b5fdc08f1287ea1178628e415e25132b73646c6d"
 
+simple-swizzle@^0.2.2:
+  version "0.2.2"
+  resolved "https://registry.yarnpkg.com/simple-swizzle/-/simple-swizzle-0.2.2.tgz#a4da6b635ffcccca33f70d17cb92592de95e557a"
+  dependencies:
+    is-arrayish "^0.3.1"
+
 slash@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/slash/-/slash-1.0.0.tgz#c41f2f6c39fc16d1cd17ad4b5d896114ae470d55"
@@ -4306,7 +4286,7 @@ source-map-support@^0.4.0, source-map-support@^0.4.2:
   dependencies:
     source-map "^0.5.6"
 
-source-map@^0.4.4:
+source-map@^0.4.4, source-map@~0.4.2:
   version "0.4.4"
   resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.4.4.tgz#eba4f5da9c0dc999de68032d8b4f76173652036b"
   dependencies: