diff --git a/.circleci/config.yml b/.circleci/config.yml
index 88094174..d2cebd28 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -34,4 +34,4 @@ jobs:
         key: v1-dependencies-{{ checksum "package.json" }}
 
     # run tests!
-    - run: yarn lint && yarn test
+    - run: yarn build && yarn lint && yarn test
diff --git a/.github/ISSUE_TEMPLATE/feature_request.md b/.github/ISSUE_TEMPLATE/feature_request.md
index 576eb21b..92cf6ab4 100644
--- a/.github/ISSUE_TEMPLATE/feature_request.md
+++ b/.github/ISSUE_TEMPLATE/feature_request.md
@@ -19,4 +19,4 @@ about: Suggest an idea for this project
 
 #### How should this be implemented in your opinion?
 
-#### Are you willing to work on this yourself?**
+#### Are you willing to work on this yourself?
diff --git a/CHANGELOG.md b/CHANGELOG.md
index f5183dbd..6468b70a 100755
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,67 @@
+<a name="1.0.0-alpha.47"></a>
+# [1.0.0-alpha.47](https://github.com/vuejs/vuepress/compare/v1.0.0-alpha.46...v1.0.0-alpha.47) (2019-04-06)
+
+
+### Bug Fixes
+
+* **$core:** `index.styl` is not injected at the end of the style bundle (close: [#1523](https://github.com/vuejs/vuepress/issues/1523)) ([dabf506](https://github.com/vuejs/vuepress/commit/dabf506))
+* **$core:** `routerBase` will always get '/' (close: [#1503](https://github.com/vuejs/vuepress/issues/1503)) ([9fba549](https://github.com/vuejs/vuepress/commit/9fba549))
+* **$markdown:** Snippets should allow spaces in file path (closes [#1505](https://github.com/vuejs/vuepress/issues/1505)) ([#1517](https://github.com/vuejs/vuepress/issues/1517)) ([5c307c9](https://github.com/vuejs/vuepress/commit/5c307c9))
+
+
+### Features
+
+* **$core:** assert return type for functional plugin ([#1516](https://github.com/vuejs/vuepress/issues/1516)) ([74887c5](https://github.com/vuejs/vuepress/commit/74887c5))
+* **$core:** emit warning if the source directory doesn't exist (close: [#1521](https://github.com/vuejs/vuepress/issues/1521)) ([6da9a5f](https://github.com/vuejs/vuepress/commit/6da9a5f))
+* **$plugin-pwa:** allow using local workbox files (close: [#539](https://github.com/vuejs/vuepress/issues/539)) ([4640614](https://github.com/vuejs/vuepress/commit/4640614))
+
+
+
+<a name="1.0.0-alpha.46"></a>
+# [1.0.0-alpha.46](https://github.com/vuejs/vuepress/compare/v1.0.0-alpha.45...v1.0.0-alpha.46) (2019-04-01)
+
+
+### Bug Fixes
+
+* **$core:** regression of introducing dynamic `routerBase` (close: [#1498](https://github.com/vuejs/vuepress/issues/1498)) ([5e12b49](https://github.com/vuejs/vuepress/commit/5e12b49))
+
+
+
+<a name="1.0.0-alpha.45"></a>
+# [1.0.0-alpha.45](https://github.com/vuejs/vuepress/compare/v1.0.0-alpha.44...v1.0.0-alpha.45) (2019-03-31)
+
+
+### Bug Fixes
+
+* **$core:** do not register component in render function ([#1449](https://github.com/vuejs/vuepress/issues/1449)) ([ef82c47](https://github.com/vuejs/vuepress/commit/ef82c47))
+* **$core:** do not use stylus in outbound link ([d34e038](https://github.com/vuejs/vuepress/commit/d34e038))
+* **$core:** should default host be 0.0.0.0 ([699492a](https://github.com/vuejs/vuepress/commit/699492a))
+* **$markdown:** treat styl as stylus language ([#1433](https://github.com/vuejs/vuepress/issues/1433)) ([f44e2db](https://github.com/vuejs/vuepress/commit/f44e2db))
+* **$markdown-loader:** always use `/` instead of `\` in `relPath` ([#1484](https://github.com/vuejs/vuepress/issues/1484)) ([944ebe4](https://github.com/vuejs/vuepress/commit/944ebe4))
+* **$plugin-active-header-links:** side navigation edge case bug ([#1477](https://github.com/vuejs/vuepress/issues/1477)) ([8a11d14](https://github.com/vuejs/vuepress/commit/8a11d14))
+* **$plugin-blog:** inconsistent paths of tag and category pages with index page ([#1420](https://github.com/vuejs/vuepress/issues/1420)) ([5c0e62f](https://github.com/vuejs/vuepress/commit/5c0e62f))
+* **$plugin-pwa:** fix a typo in `opacity` ([#1444](https://github.com/vuejs/vuepress/issues/1444)) ([c174f0d](https://github.com/vuejs/vuepress/commit/c174f0d))
+* **$theme-default:** fix wrong editLink (close: [#1115](https://github.com/vuejs/vuepress/issues/1115), [#1125](https://github.com/vuejs/vuepress/issues/1125)) ([#1419](https://github.com/vuejs/vuepress/issues/1419)) ([3b14375](https://github.com/vuejs/vuepress/commit/3b14375))
+* **$theme-default:** nav url change bug (close: [#865](https://github.com/vuejs/vuepress/issues/865)) ([#1475](https://github.com/vuejs/vuepress/issues/1475)) ([521dddd](https://github.com/vuejs/vuepress/commit/521dddd))
+
+
+### Features
+
+* **$core:** allow dynamic routeBase at runtime ([fc99d59](https://github.com/vuejs/vuepress/commit/fc99d59))
+* **$core:** decode page path for better readablility ([#1438](https://github.com/vuejs/vuepress/issues/1438)) ([93b2ca1](https://github.com/vuejs/vuepress/commit/93b2ca1))
+* **$core:** export version ([#1486](https://github.com/vuejs/vuepress/issues/1486)) ([d7b8daf](https://github.com/vuejs/vuepress/commit/d7b8daf))
+* **$core:** functional siteConfig.evergreen ([#1489](https://github.com/vuejs/vuepress/issues/1489)) ([19e0569](https://github.com/vuejs/vuepress/commit/19e0569))
+* **$core:** support array as plugin options ([#1493](https://github.com/vuejs/vuepress/issues/1493)) ([9e07b1e](https://github.com/vuejs/vuepress/commit/9e07b1e))
+* **$markdown:** markdown plugin (close: [#585](https://github.com/vuejs/vuepress/issues/585)) ([#1422](https://github.com/vuejs/vuepress/issues/1422)) ([9734a58](https://github.com/vuejs/vuepress/commit/9734a58))
+* **$plugin-register-components:** custom name registration (close: [#656](https://github.com/vuejs/vuepress/issues/656)) ([#1418](https://github.com/vuejs/vuepress/issues/1418)) ([9c6a00b](https://github.com/vuejs/vuepress/commit/9c6a00b))
+
+
+### Breaking Changes
+
+* Depreated [@vuepress/plugin-container](https://www.npmjs.com/package/@vuepress/plugin-container) and moved it to [vuepress-plugin-container](https://www.npmjs.com/package/vuepress-plugin-container).
+* Depreated [@vuepress/plugin-clean-urls](https://www.npmjs.com/package/@vuepress/plugin-clean-urls) and moved it to [vuepress-plugin-clean-urls](https://www.npmjs.com/package/vuepress-plugin-clean-urls).
+
+
 <a name="1.0.0-alpha.44"></a>
 # [1.0.0-alpha.44](https://github.com/vuejs/vuepress/compare/v1.0.0-alpha.43...v1.0.0-alpha.44) (2019-03-10)
 
diff --git a/lerna.json b/lerna.json
index 1a047011..7c6d8823 100644
--- a/lerna.json
+++ b/lerna.json
@@ -2,5 +2,5 @@
   "lerna": "2.5.1",
   "npmClient": "yarn",
   "useWorkspaces": true,
-  "version": "1.0.0-alpha.44"
+  "version": "1.0.0-alpha.47"
 }
diff --git a/packages/@vuepress/core/lib/client/app.js b/packages/@vuepress/core/lib/client/app.js
index bcccec17..b29717a9 100644
--- a/packages/@vuepress/core/lib/client/app.js
+++ b/packages/@vuepress/core/lib/client/app.js
@@ -61,8 +61,12 @@ Vue.prototype.$withBase = function (path) {
 }
 
 export function createApp (isServer) {
+  const routerBase = typeof window !== 'undefined' && window.__VUEPRESS_ROUTER_BASE__
+    ? window.__VUEPRESS_ROUTER_BASE__
+    : (siteData.routerBase || siteData.base)
+
   const router = new Router({
-    base: siteData.base,
+    base: routerBase,
     mode: 'history',
     fallback: false,
     routes,
diff --git a/packages/@vuepress/core/lib/node/App.js b/packages/@vuepress/core/lib/node/App.js
index 87f78438..e1897bae 100755
--- a/packages/@vuepress/core/lib/node/App.js
+++ b/packages/@vuepress/core/lib/node/App.js
@@ -41,6 +41,9 @@ module.exports = class App {
     this.options = options
     this.sourceDir = this.options.sourceDir || path.join(__dirname, 'docs.fallback')
     logger.debug('sourceDir', this.sourceDir)
+    if (!fs.existsSync(this.sourceDir)) {
+      logger.warn(`Source directory doesn't exist: ${chalk.yellow(this.sourceDir)}`)
+    }
 
     const { tempPath, writeTemp } = createTemp(options.temp)
     this.tempPath = tempPath
@@ -149,12 +152,12 @@ module.exports = class App {
       .use(require('./internal-plugins/transformModule'))
       .use(require('./internal-plugins/dataBlock'))
       .use(require('./internal-plugins/frontmatterBlock'))
-      .use('@vuepress/container', {
+      .use('container', {
         type: 'slot',
         before: info => `<template slot="${info}">`,
         after: '</template>'
       })
-      .use('@vuepress/container', {
+      .use('container', {
         type: 'v-pre',
         before: '<div v-pre>',
         after: '</div>'
diff --git a/packages/@vuepress/core/lib/node/dev/index.js b/packages/@vuepress/core/lib/node/dev/index.js
index 9f2cf270..ccd1ec5f 100644
--- a/packages/@vuepress/core/lib/node/dev/index.js
+++ b/packages/@vuepress/core/lib/node/dev/index.js
@@ -266,7 +266,7 @@ module.exports = class DevProcess extends EventEmitter {
  */
 
 function resolveHost (host) {
-  const defaultHost = 'localhost'
+  const defaultHost = '0.0.0.0'
   host = host || defaultHost
   const displayHost = host === defaultHost
     ? 'localhost'
diff --git a/packages/@vuepress/core/lib/node/internal-plugins/palette/index.js b/packages/@vuepress/core/lib/node/internal-plugins/palette/index.js
index 7327c4e0..49d162ec 100644
--- a/packages/@vuepress/core/lib/node/internal-plugins/palette/index.js
+++ b/packages/@vuepress/core/lib/node/internal-plugins/palette/index.js
@@ -31,15 +31,22 @@ module.exports = (options, ctx) => ({
       ? `@import(${JSON.stringify(userPalette.replace(/[\\]+/g, '/'))})`
       : ''
 
+    const nullComment = '// null'
+
     // user's palette can override theme's palette.
-    let paletteContent = themePaletteContent + userPaletteContent
+    let paletteContent = '// Theme\'s Palette\n'
+      + (themePaletteContent || nullComment)
+      + '\n\n// User\'s Palette\n'
+      + (userPaletteContent || nullComment)
 
     if (ctx.themeAPI.existsParentTheme) {
       const parentThemePalette = path.resolve(ctx.themeAPI.parentTheme.path, 'styles/palette.styl')
       const parentThemePaletteContent = fs.existsSync(parentThemePalette)
         ? `@import(${JSON.stringify(parentThemePalette.replace(/[\\]+/g, '/'))})`
         : ''
-      paletteContent = parentThemePaletteContent + paletteContent
+      paletteContent = '// Parent Theme\'s Palette\n'
+        + (parentThemePaletteContent || nullComment)
+        + '\n\n' + paletteContent
     }
 
     await writeTemp('palette.styl', paletteContent)
diff --git a/packages/@vuepress/core/lib/node/internal-plugins/style/index.js b/packages/@vuepress/core/lib/node/internal-plugins/style/index.js
index 2055be69..b8a54871 100644
--- a/packages/@vuepress/core/lib/node/internal-plugins/style/index.js
+++ b/packages/@vuepress/core/lib/node/internal-plugins/style/index.js
@@ -30,14 +30,23 @@ module.exports = (options, ctx) => ({
       ? `@import(${JSON.stringify(userStyle.replace(/[\\]+/g, '/'))})`
       : ''
 
-    let styleContent = themeStyleContent + userStyleContent
+    const nullComment = '// null'
+
+    // user's styles can override theme's styles.
+    let styleContent = '// Theme\'s Styles\n'
+      + (themeStyleContent || nullComment)
+      + '\n\n// User\'s Styles\n'
+      + (userStyleContent || nullComment)
 
     if (themeAPI.existsParentTheme) {
       const parentThemeStyle = path.resolve(themeAPI.parentTheme.path, 'styles/index.styl')
       const parentThemeStyleContent = fs.existsSync(parentThemeStyle)
         ? `@import(${JSON.stringify(parentThemeStyle.replace(/[\\]+/g, '/'))})`
         : ''
-      styleContent = parentThemeStyleContent + styleContent
+
+      styleContent = '// Parent Theme\'s Styles\n'
+        + (parentThemeStyleContent || nullComment)
+        + '\n\n' + styleContent
     }
 
     await writeTemp('style.styl', styleContent)
diff --git a/packages/@vuepress/core/lib/node/plugin-api/util.js b/packages/@vuepress/core/lib/node/plugin-api/util.js
index af2ede44..b3c17a50 100644
--- a/packages/@vuepress/core/lib/node/plugin-api/util.js
+++ b/packages/@vuepress/core/lib/node/plugin-api/util.js
@@ -22,7 +22,7 @@ exports.flattenPlugin = function (
   pluginContext,
   self
 ) {
-  const { valid, warnMsg } = assertTypes(pluginOptions, [Object, Boolean])
+  const { valid, warnMsg } = assertTypes(pluginOptions, [Object, Array, Boolean])
   if (!valid) {
     if (pluginOptions !== undefined) {
       logger.warn(
@@ -43,6 +43,14 @@ exports.flattenPlugin = function (
     // 'Object.create' here is to give each plugin a separate context,
     // but also own the inheritance context.
     config = config(pluginOptions, Object.create(pluginContext), self)
+    const { valid, warnMsg } = assertTypes(config, [Object])
+    if (!valid) {
+      logger.warn(
+        `[${chalk.gray(shortcut)}] `
+        + `Invalid value for plugin: ${warnMsg}`
+      )
+      config = {}
+    }
   }
 
   // respect name in local plugin config
diff --git a/packages/@vuepress/core/lib/node/webpack/createBaseConfig.js b/packages/@vuepress/core/lib/node/webpack/createBaseConfig.js
index 1bbd5caf..f90ba6ff 100644
--- a/packages/@vuepress/core/lib/node/webpack/createBaseConfig.js
+++ b/packages/@vuepress/core/lib/node/webpack/createBaseConfig.js
@@ -127,7 +127,10 @@ module.exports = function createBaseConfig (context, isServer) {
       .loader('pug-plain-loader')
       .end()
 
-  if (!siteConfig.evergreen) {
+  const evergreen = typeof siteConfig.evergreen === 'function'
+    ? siteConfig.evergreen()
+    : siteConfig.evergreen
+  if (!evergreen) {
     const libDir = path.join(__dirname, '..')
     config.module
       .rule('js')
diff --git a/packages/@vuepress/core/lib/node/webpack/createClientConfig.js b/packages/@vuepress/core/lib/node/webpack/createClientConfig.js
index d6a8262c..c4aaae75 100644
--- a/packages/@vuepress/core/lib/node/webpack/createClientConfig.js
+++ b/packages/@vuepress/core/lib/node/webpack/createClientConfig.js
@@ -7,6 +7,7 @@
 module.exports = function createClientConfig (ctx) {
   const { env } = require('@vuepress/shared-utils')
   const createBaseConfig = require('./createBaseConfig')
+  const safeParser = require('postcss-safe-parser')
 
   const config = createBaseConfig(ctx)
 
@@ -49,7 +50,7 @@ module.exports = function createClientConfig (ctx) {
       .use(require('optimize-css-assets-webpack-plugin'), [{
         canPrint: false,
         cssProcessorOptions: {
-          safe: true,
+          parser: safeParser,
           autoprefixer: { disable: true },
           mergeLonghand: false
         }
diff --git a/packages/@vuepress/core/package.json b/packages/@vuepress/core/package.json
index 168125b1..3f9ca0c3 100644
--- a/packages/@vuepress/core/package.json
+++ b/packages/@vuepress/core/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@vuepress/core",
-  "version": "1.0.0-alpha.44",
+  "version": "1.0.0-alpha.47",
   "description": "Minimalistic doc generator with Vue component based layout system",
   "main": "lib/index.js",
   "repository": {
@@ -31,12 +31,11 @@
   "dependencies": {
     "@babel/core": "^7.0.0",
     "@vue/babel-preset-app": "^3.1.1",
-    "@vuepress/markdown": "^1.0.0-alpha.44",
-    "@vuepress/markdown-loader": "^1.0.0-alpha.44",
-    "@vuepress/plugin-container": "^1.0.0-alpha.44",
-    "@vuepress/plugin-last-updated": "^1.0.0-alpha.44",
-    "@vuepress/plugin-register-components": "^1.0.0-alpha.44",
-    "@vuepress/shared-utils": "^1.0.0-alpha.44",
+    "@vuepress/markdown": "^1.0.0-alpha.47",
+    "@vuepress/markdown-loader": "^1.0.0-alpha.47",
+    "@vuepress/plugin-last-updated": "^1.0.0-alpha.47",
+    "@vuepress/plugin-register-components": "^1.0.0-alpha.47",
+    "@vuepress/shared-utils": "^1.0.0-alpha.47",
     "autoprefixer": "^7.1.2",
     "babel-loader": "^8.0.4",
     "cache-loader": "^1.2.2",
@@ -49,9 +48,10 @@
     "js-yaml": "^3.11.0",
     "lru-cache": "^5.1.1",
     "mini-css-extract-plugin": "0.4.4",
-    "optimize-css-assets-webpack-plugin": "^4.0.0",
+    "optimize-css-assets-webpack-plugin": "^5.0.1",
     "portfinder": "^1.0.13",
     "postcss-loader": "^2.1.5",
+    "postcss-safe-parser": "^4.0.1",
     "toml": "^2.3.3",
     "url-loader": "^1.0.1",
     "vue": "^2.5.16",
@@ -60,6 +60,7 @@
     "vue-server-renderer": "^2.5.16",
     "vue-template-compiler": "^2.5.16",
     "vuepress-html-webpack-plugin": "^3.2.0",
+    "vuepress-plugin-container": "^2.0.0",
     "webpack": "^4.8.1",
     "webpack-chain": "^4.6.0",
     "webpack-dev-server": "^3.1.14",
diff --git a/packages/@vuepress/markdown-loader/package.json b/packages/@vuepress/markdown-loader/package.json
index a9b8de66..6d308fcd 100644
--- a/packages/@vuepress/markdown-loader/package.json
+++ b/packages/@vuepress/markdown-loader/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@vuepress/markdown-loader",
-  "version": "1.0.0-alpha.44",
+  "version": "1.0.0-alpha.47",
   "description": "markdown-loader for vuepress",
   "main": "index.js",
   "publishConfig": {
@@ -18,7 +18,7 @@
     "generator"
   ],
   "dependencies": {
-    "@vuepress/markdown": "^1.0.0-alpha.44",
+    "@vuepress/markdown": "^1.0.0-alpha.47",
     "loader-utils": "^1.1.0",
     "lru-cache": "^5.1.1"
   },
diff --git a/packages/@vuepress/markdown/__tests__/__snapshots__/snippet.spec.js.snap b/packages/@vuepress/markdown/__tests__/__snapshots__/snippet.spec.js.snap
index 1514907d..d62e8722 100644
--- a/packages/@vuepress/markdown/__tests__/__snapshots__/snippet.spec.js.snap
+++ b/packages/@vuepress/markdown/__tests__/__snapshots__/snippet.spec.js.snap
@@ -1,5 +1,15 @@
 // Jest Snapshot v1, https://goo.gl/fbAQLP
 
+exports[`snippet import snipets when the file has a space in the file path 1`] = `
+<div class="highlight-lines">
+  <div class="highlighted">&nbsp;</div>
+  <div class="highlighted">&nbsp;</div>
+  <div class="highlighted">&nbsp;</div><br>
+</div>export default function () {
+// ..
+}
+`;
+
 exports[`snippet import snippet 1`] = `
 <pre><code class="language-js">export default function () {
   // ..
diff --git a/packages/@vuepress/markdown/__tests__/fragments/code-snippet-with-space-in-path.md b/packages/@vuepress/markdown/__tests__/fragments/code-snippet-with-space-in-path.md
new file mode 100644
index 00000000..659cb258
--- /dev/null
+++ b/packages/@vuepress/markdown/__tests__/fragments/code-snippet-with-space-in-path.md
@@ -0,0 +1 @@
+<<< @/packages/@vuepress/markdown/__tests__/fragments/snippet with spaces.js {1-3}
diff --git a/packages/@vuepress/markdown/__tests__/fragments/snippet with spaces.js b/packages/@vuepress/markdown/__tests__/fragments/snippet with spaces.js
new file mode 100644
index 00000000..575039d1
--- /dev/null
+++ b/packages/@vuepress/markdown/__tests__/fragments/snippet with spaces.js	
@@ -0,0 +1,3 @@
+export default function () {
+  // ..
+}
diff --git a/packages/@vuepress/markdown/__tests__/snippet.spec.js b/packages/@vuepress/markdown/__tests__/snippet.spec.js
index bd3a23cf..4a2c65f8 100644
--- a/packages/@vuepress/markdown/__tests__/snippet.spec.js
+++ b/packages/@vuepress/markdown/__tests__/snippet.spec.js
@@ -24,4 +24,10 @@ describe('snippet', () => {
     const output = mdH.render(input)
     expect(output).toMatchSnapshot()
   })
+
+  test('import snipets when the file has a space in the file path', () => {
+    const input = getFragment(__dirname, 'code-snippet-with-space-in-path.md')
+    const output = mdH.render(input)
+    expect(output).toMatchSnapshot()
+  })
 })
diff --git a/packages/@vuepress/markdown/lib/snippet.js b/packages/@vuepress/markdown/lib/snippet.js
index 48a26ae6..9b0a3cbb 100644
--- a/packages/@vuepress/markdown/lib/snippet.js
+++ b/packages/@vuepress/markdown/lib/snippet.js
@@ -43,7 +43,7 @@ module.exports = function snippet (md, options = {}) {
     const start = pos + 3
     const end = state.skipSpacesBack(max, pos)
     const rawPath = state.src.slice(start, end).trim().replace(/^@/, root)
-    const filename = rawPath.split(/[{\s]/).shift()
+    const filename = rawPath.split(/{/).shift().trim()
     const meta = rawPath.replace(filename, '')
 
     state.line = startLine + 1
diff --git a/packages/@vuepress/markdown/package.json b/packages/@vuepress/markdown/package.json
index 52c032b2..1036f193 100644
--- a/packages/@vuepress/markdown/package.json
+++ b/packages/@vuepress/markdown/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@vuepress/markdown",
-  "version": "1.0.0-alpha.44",
+  "version": "1.0.0-alpha.47",
   "description": "markdown for vuepress",
   "main": "index.js",
   "publishConfig": {
@@ -19,7 +19,7 @@
     "markdown"
   ],
   "dependencies": {
-    "@vuepress/shared-utils": "^1.0.0-alpha.44",
+    "@vuepress/shared-utils": "^1.0.0-alpha.47",
     "lru-cache": "^5.1.1",
     "markdown-it": "^8.4.1",
     "markdown-it-anchor": "^5.0.2",
@@ -27,7 +27,7 @@
     "markdown-it-emoji": "^1.4.0"
   },
   "devDependencies": {
-    "@vuepress/test-utils": "^1.0.0-alpha.44"
+    "@vuepress/test-utils": "^1.0.0-alpha.47"
   },
   "author": "Evan You",
   "maintainers": [
diff --git a/packages/@vuepress/plugin-active-header-links/package.json b/packages/@vuepress/plugin-active-header-links/package.json
index 4457b4d6..ea417774 100644
--- a/packages/@vuepress/plugin-active-header-links/package.json
+++ b/packages/@vuepress/plugin-active-header-links/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@vuepress/plugin-active-header-links",
-  "version": "1.0.0-alpha.44",
+  "version": "1.0.0-alpha.47",
   "description": "active-header-links plugin for vuepress",
   "main": "index.js",
   "publishConfig": {
diff --git a/packages/@vuepress/plugin-back-to-top/package.json b/packages/@vuepress/plugin-back-to-top/package.json
index ff1d0f6c..f0613eee 100644
--- a/packages/@vuepress/plugin-back-to-top/package.json
+++ b/packages/@vuepress/plugin-back-to-top/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@vuepress/plugin-back-to-top",
-  "version": "1.0.0-alpha.44",
+  "version": "1.0.0-alpha.47",
   "description": "back-to-top plugin for vuepress",
   "main": "index.js",
   "publishConfig": {
diff --git a/packages/@vuepress/plugin-blog/package.json b/packages/@vuepress/plugin-blog/package.json
index 5cbc1584..bd3029dc 100644
--- a/packages/@vuepress/plugin-blog/package.json
+++ b/packages/@vuepress/plugin-blog/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@vuepress/plugin-blog",
-  "version": "1.0.0-alpha.44",
+  "version": "1.0.0-alpha.47",
   "description": "blog plugin for vuepress",
   "main": "index.js",
   "publishConfig": {
diff --git a/packages/@vuepress/plugin-container/.npmignore b/packages/@vuepress/plugin-container/.npmignore
deleted file mode 100644
index 13c38ea3..00000000
--- a/packages/@vuepress/plugin-container/.npmignore
+++ /dev/null
@@ -1,3 +0,0 @@
-__tests__
-__mocks__
-.temp
diff --git a/packages/@vuepress/plugin-container/README.md b/packages/@vuepress/plugin-container/README.md
deleted file mode 100644
index a7910b2d..00000000
--- a/packages/@vuepress/plugin-container/README.md
+++ /dev/null
@@ -1,5 +0,0 @@
-# @vuepress/plugin-container
-
-> markdown container plugin for vuepress
-
-See [documentation](https://v1.vuepress.vuejs.org/plugin/official/plugin-container.html).
diff --git a/packages/@vuepress/plugin-container/__tests__/__snapshots__/index.spec.js.snap b/packages/@vuepress/plugin-container/__tests__/__snapshots__/index.spec.js.snap
deleted file mode 100644
index f67ad8f0..00000000
--- a/packages/@vuepress/plugin-container/__tests__/__snapshots__/index.spec.js.snap
+++ /dev/null
@@ -1,48 +0,0 @@
-// Jest Snapshot v1, https://goo.gl/fbAQLP
-
-exports[`containers danger.md 1`] = `
-<div class="danger custom-block">
-  <p class="custom-block-title">DANGER</p>
-  <p>I am a danger</p>
-</div>
-`;
-
-exports[`containers markdown-slots.md 1`] = `
-<template slot="header">
-  <h1 id="here-might-be-a-page-title"><a class="header-anchor" href="#here-might-be-a-page-title" aria-hidden="true">#</a> Here might be a page title</h1>
-</template>
-<ul>
-  <li>A Paragraph</li>
-  <li>Another Paragraph</li>
-</ul>
-<template slot="footer">
-  <p>Here's some contact info</p>
-</template>
-`;
-
-exports[`containers tip.md 1`] = `
-<div class="tip custom-block">
-  <p class="custom-block-title">TIP</p>
-  <p>I am a tip</p>
-</div>
-`;
-
-exports[`containers tip-override.md 1`] = `
-<div class="tip custom-block">
-  <p class="custom-block-title">提示</p>
-  <p>I am a tip</p>
-</div>
-`;
-
-exports[`containers v-pre.md 1`] = `
-<div v-pre>
-  <p>I am a v-pre</p>
-</div>
-`;
-
-exports[`containers warning.md 1`] = `
-<div class="warning custom-block">
-  <p class="custom-block-title">WARNING</p>
-  <p>I am a warning</p>
-</div>
-`;
diff --git a/packages/@vuepress/plugin-container/__tests__/fragments/danger.md b/packages/@vuepress/plugin-container/__tests__/fragments/danger.md
deleted file mode 100644
index 2f2aa62c..00000000
--- a/packages/@vuepress/plugin-container/__tests__/fragments/danger.md
+++ /dev/null
@@ -1,3 +0,0 @@
-::: danger
-I am a danger
-:::
diff --git a/packages/@vuepress/plugin-container/__tests__/fragments/markdown-slots.md b/packages/@vuepress/plugin-container/__tests__/fragments/markdown-slots.md
deleted file mode 100644
index c6c60ab8..00000000
--- a/packages/@vuepress/plugin-container/__tests__/fragments/markdown-slots.md
+++ /dev/null
@@ -1,10 +0,0 @@
-::: slot header
-# Here might be a page title
-:::
-
-- A Paragraph
-- Another Paragraph
-
-::: slot footer
-Here's some contact info
-:::
diff --git a/packages/@vuepress/plugin-container/__tests__/fragments/tip-override.md b/packages/@vuepress/plugin-container/__tests__/fragments/tip-override.md
deleted file mode 100644
index 2ba47c38..00000000
--- a/packages/@vuepress/plugin-container/__tests__/fragments/tip-override.md
+++ /dev/null
@@ -1,3 +0,0 @@
-::: tip 提示
-I am a tip
-:::
diff --git a/packages/@vuepress/plugin-container/__tests__/fragments/tip.md b/packages/@vuepress/plugin-container/__tests__/fragments/tip.md
deleted file mode 100644
index e9b82b19..00000000
--- a/packages/@vuepress/plugin-container/__tests__/fragments/tip.md
+++ /dev/null
@@ -1,3 +0,0 @@
-::: tip
-I am a tip
-:::
diff --git a/packages/@vuepress/plugin-container/__tests__/fragments/v-pre.md b/packages/@vuepress/plugin-container/__tests__/fragments/v-pre.md
deleted file mode 100644
index f1694023..00000000
--- a/packages/@vuepress/plugin-container/__tests__/fragments/v-pre.md
+++ /dev/null
@@ -1,3 +0,0 @@
-::: v-pre
-I am a v-pre
-:::
diff --git a/packages/@vuepress/plugin-container/__tests__/fragments/warning.md b/packages/@vuepress/plugin-container/__tests__/fragments/warning.md
deleted file mode 100644
index 37aa641b..00000000
--- a/packages/@vuepress/plugin-container/__tests__/fragments/warning.md
+++ /dev/null
@@ -1,3 +0,0 @@
-::: warning
-I am a warning
-:::
diff --git a/packages/@vuepress/plugin-container/__tests__/index.spec.js b/packages/@vuepress/plugin-container/__tests__/index.spec.js
deleted file mode 100644
index b1efaa99..00000000
--- a/packages/@vuepress/plugin-container/__tests__/index.spec.js
+++ /dev/null
@@ -1,36 +0,0 @@
-const { createApp } = require('@vuepress/core')
-const { getFragments } = require('@vuepress/test-utils')
-import containerPlugin from '..'
-
-describe('containers', async () => {
-  let app
-
-  beforeAll(async () => {
-    app = createApp()
-    app.options.siteConfig = {
-      plugins: [
-        [containerPlugin, { type: 'tip' }],
-        [containerPlugin, { type: 'warning' }],
-        [containerPlugin, { type: 'danger' }],
-        [containerPlugin, {
-          type: 'slot',
-          before: info => `<template slot="${info}">`,
-          after: '</template>'
-        }],
-        [containerPlugin, {
-          type: 'v-pre',
-          before: '<div v-pre>',
-          after: '</div>'
-        }]
-      ]
-    }
-    return app.process()
-  })
-
-  getFragments(__dirname).forEach(({ name, content: input }) => {
-    test(name, () => {
-      const { html } = app.markdown.render(input)
-      expect(html).toMatchSnapshot()
-    })
-  })
-})
diff --git a/packages/@vuepress/plugin-container/index.js b/packages/@vuepress/plugin-container/index.js
deleted file mode 100644
index 6d995b4b..00000000
--- a/packages/@vuepress/plugin-container/index.js
+++ /dev/null
@@ -1,50 +0,0 @@
-const container = require('markdown-it-container')
-
-function call (target, ...args) {
-  if (typeof target === 'function') {
-    return target(...args)
-  } else {
-    return target
-  }
-}
-
-module.exports = (options, context) => ({
-  name: require('./package').name,
-
-  multiple: true,
-
-  extendMarkdown (md) {
-    const {
-      validate,
-      marker,
-      before,
-      after,
-      type = '',
-      defaultTitle = type.toUpperCase()
-    } = options
-    if (!type) return
-
-    let { render } = options
-    if (!render) {
-      if (before !== undefined && after !== undefined) {
-        render = (tokens, index) => {
-          const info = tokens[index].info.trim().slice(type.length).trim()
-          return tokens[index].nesting === 1 ? call(before, info) : call(after, info)
-        }
-      } else {
-        render = (tokens, index) => {
-          const token = tokens[index]
-          let title = token.info.trim().slice(type.length).trim() || defaultTitle
-          if (title) title = `<p class="custom-block-title">${title}</p>`
-          if (token.nesting === 1) {
-            return `<div class="${type} custom-block">${title}\n`
-          } else {
-            return `</div>\n`
-          }
-        }
-      }
-    }
-
-    md.use(container, type, { render, validate, marker })
-  }
-})
diff --git a/packages/@vuepress/plugin-container/package.json b/packages/@vuepress/plugin-container/package.json
deleted file mode 100644
index f1489705..00000000
--- a/packages/@vuepress/plugin-container/package.json
+++ /dev/null
@@ -1,32 +0,0 @@
-{
-  "name": "@vuepress/plugin-container",
-  "version": "1.0.0-alpha.44",
-  "description": "markdown container plugin for vuepress",
-  "main": "index.js",
-  "publishConfig": {
-    "access": "public"
-  },
-  "repository": {
-    "type": "git",
-    "url": "git+https://github.com/vuejs/vuepress.git",
-    "directory": "packages/@vuepress/plugin-container"
-  },
-  "keywords": [
-    "documentation",
-    "vue",
-    "vuepress",
-    "generator"
-  ],
-  "dependencies": {
-    "markdown-it-container": "^2.0.0"
-  },
-  "devDependencies": {
-    "@vuepress/test-utils": "^1.0.0-alpha.44"
-  },
-  "author": "Shigma <1700011071@pku.edu.cn>",
-  "license": "MIT",
-  "bugs": {
-    "url": "https://github.com/vuejs/vuepress/issues"
-  },
-  "homepage": "https://github.com/vuejs/vuepress/packages/@vuepress/plugin-container#readme"
-}
diff --git a/packages/@vuepress/plugin-google-analytics/package.json b/packages/@vuepress/plugin-google-analytics/package.json
index a46d25ad..4de2df27 100644
--- a/packages/@vuepress/plugin-google-analytics/package.json
+++ b/packages/@vuepress/plugin-google-analytics/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@vuepress/plugin-google-analytics",
-  "version": "1.0.0-alpha.44",
+  "version": "1.0.0-alpha.47",
   "description": "google-analytics plugin for vuepress",
   "main": "index.js",
   "publishConfig": {
diff --git a/packages/@vuepress/plugin-last-updated/package.json b/packages/@vuepress/plugin-last-updated/package.json
index 5f817ed9..97985644 100644
--- a/packages/@vuepress/plugin-last-updated/package.json
+++ b/packages/@vuepress/plugin-last-updated/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@vuepress/plugin-last-updated",
-  "version": "1.0.0-alpha.44",
+  "version": "1.0.0-alpha.47",
   "description": "last-updated plugin for vuepress",
   "main": "index.js",
   "publishConfig": {
diff --git a/packages/@vuepress/plugin-medium-zoom/package.json b/packages/@vuepress/plugin-medium-zoom/package.json
index 82abc816..70beef65 100644
--- a/packages/@vuepress/plugin-medium-zoom/package.json
+++ b/packages/@vuepress/plugin-medium-zoom/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@vuepress/plugin-medium-zoom",
-  "version": "1.0.0-alpha.44",
+  "version": "1.0.0-alpha.47",
   "description": "medium-zoom plugin for vuepress",
   "main": "index.js",
   "publishConfig": {
diff --git a/packages/@vuepress/plugin-nprogress/package.json b/packages/@vuepress/plugin-nprogress/package.json
index 159870c3..735ca48c 100644
--- a/packages/@vuepress/plugin-nprogress/package.json
+++ b/packages/@vuepress/plugin-nprogress/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@vuepress/plugin-nprogress",
-  "version": "1.0.0-alpha.44",
+  "version": "1.0.0-alpha.47",
   "description": "nprogress plugin for vuepress",
   "main": "index.js",
   "publishConfig": {
diff --git a/packages/@vuepress/plugin-pagination/package.json b/packages/@vuepress/plugin-pagination/package.json
index d911a543..e55ffc8a 100644
--- a/packages/@vuepress/plugin-pagination/package.json
+++ b/packages/@vuepress/plugin-pagination/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@vuepress/plugin-pagination",
-  "version": "1.0.0-alpha.44",
+  "version": "1.0.0-alpha.47",
   "description": "pagination plugin for vuepress",
   "main": "index.js",
   "publishConfig": {
diff --git a/packages/@vuepress/plugin-pwa/index.js b/packages/@vuepress/plugin-pwa/index.js
index 748f1752..0bbf49e3 100644
--- a/packages/@vuepress/plugin-pwa/index.js
+++ b/packages/@vuepress/plugin-pwa/index.js
@@ -40,7 +40,8 @@ module.exports = (options, context) => ({
       await wbb.generateSW({
         swDest: swFilePath,
         globDirectory: outDir,
-        globPatterns: ['**\/*.{js,css,html,png,jpg,jpeg,gif,svg,woff,woff2,eot,ttf,otf}']
+        globPatterns: ['**\/*.{js,css,html,png,jpg,jpeg,gif,svg,woff,woff2,eot,ttf,otf}'],
+        ...(options.generateSWConfig || {})
       })
       await fs.writeFile(
         swFilePath,
diff --git a/packages/@vuepress/plugin-pwa/package.json b/packages/@vuepress/plugin-pwa/package.json
index cc60ccf9..489a42a0 100644
--- a/packages/@vuepress/plugin-pwa/package.json
+++ b/packages/@vuepress/plugin-pwa/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@vuepress/plugin-pwa",
-  "version": "1.0.0-alpha.44",
+  "version": "1.0.0-alpha.47",
   "description": "pwa plugin for vuepress",
   "main": "index.js",
   "publishConfig": {
@@ -18,7 +18,7 @@
     "generator"
   ],
   "dependencies": {
-    "@vuepress/shared-utils": "^1.0.0-alpha.44",
+    "@vuepress/shared-utils": "^1.0.0-alpha.47",
     "register-service-worker": "^1.5.2",
     "workbox-build": "^3.1.0"
   },
diff --git a/packages/@vuepress/plugin-register-components/package.json b/packages/@vuepress/plugin-register-components/package.json
index ef6cfa74..afbbb421 100644
--- a/packages/@vuepress/plugin-register-components/package.json
+++ b/packages/@vuepress/plugin-register-components/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@vuepress/plugin-register-components",
-  "version": "1.0.0-alpha.44",
+  "version": "1.0.0-alpha.47",
   "description": "register-global-components plugin for vuepress",
   "main": "index.js",
   "publishConfig": {
@@ -24,6 +24,6 @@
   },
   "homepage": "https://github.com/vuejs/vuepress/packages/@vuepress/plugin-register-components#readme",
   "dependencies": {
-    "@vuepress/shared-utils": "^1.0.0-alpha.44"
+    "@vuepress/shared-utils": "^1.0.0-alpha.47"
   }
 }
diff --git a/packages/@vuepress/plugin-search/package.json b/packages/@vuepress/plugin-search/package.json
index 71995ff3..19aeedb6 100644
--- a/packages/@vuepress/plugin-search/package.json
+++ b/packages/@vuepress/plugin-search/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@vuepress/plugin-search",
-  "version": "1.0.0-alpha.44",
+  "version": "1.0.0-alpha.47",
   "description": "search plugin for vuepress",
   "main": "index.js",
   "publishConfig": {
diff --git a/packages/@vuepress/shared-utils/package.json b/packages/@vuepress/shared-utils/package.json
index a66f3e41..cc801a63 100644
--- a/packages/@vuepress/shared-utils/package.json
+++ b/packages/@vuepress/shared-utils/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@vuepress/shared-utils",
-  "version": "1.0.0-alpha.44",
+  "version": "1.0.0-alpha.47",
   "description": "shared-utils for vuepress",
   "main": "lib/index.js",
   "types": "types/index.d.ts",
diff --git a/packages/@vuepress/test-utils/package.json b/packages/@vuepress/test-utils/package.json
index 8f7ebc95..d66fb686 100644
--- a/packages/@vuepress/test-utils/package.json
+++ b/packages/@vuepress/test-utils/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@vuepress/test-utils",
-  "version": "1.0.0-alpha.44",
+  "version": "1.0.0-alpha.47",
   "description": "test-utils for vuepress",
   "main": "index.js",
   "publishConfig": {
@@ -22,8 +22,8 @@
     "@babel/preset-env": "^7.0.0",
     "@types/jest": "^24.0.9",
     "@vue/test-utils": "^1.0.0-beta.29",
-    "@vuepress/core": "^1.0.0-alpha.44",
-    "@vuepress/shared-utils": "^1.0.0-alpha.44",
+    "@vuepress/core": "^1.0.0-alpha.47",
+    "@vuepress/shared-utils": "^1.0.0-alpha.47",
     "babel-jest": "^24.1.0",
     "execa": "^0.10.0",
     "jest": "^24.1.0",
diff --git a/packages/@vuepress/theme-blog/package.json b/packages/@vuepress/theme-blog/package.json
index fdff5b25..7a192b0e 100644
--- a/packages/@vuepress/theme-blog/package.json
+++ b/packages/@vuepress/theme-blog/package.json
@@ -1,7 +1,7 @@
 {
   "private": true,
   "name": "@vuepress/theme-blog",
-  "version": "1.0.0-alpha.44",
+  "version": "1.0.0-alpha.47",
   "description": "theme-blog for vuepress",
   "main": "index.js",
   "publishConfig": {
@@ -19,10 +19,10 @@
     "generator"
   ],
   "dependencies": {
-    "@vuepress/plugin-blog": "^1.0.0-alpha.44",
-    "@vuepress/plugin-medium-zoom": "^1.0.0-alpha.44",
-    "@vuepress/plugin-pagination": "^1.0.0-alpha.44",
-    "@vuepress/plugin-search": "^1.0.0-alpha.44"
+    "@vuepress/plugin-blog": "^1.0.0-alpha.47",
+    "@vuepress/plugin-medium-zoom": "^1.0.0-alpha.47",
+    "@vuepress/plugin-pagination": "^1.0.0-alpha.47",
+    "@vuepress/plugin-search": "^1.0.0-alpha.47"
   },
   "author": "ULIVZ <chl814@foxmail.com>",
   "license": "MIT",
diff --git a/packages/@vuepress/theme-default/index.js b/packages/@vuepress/theme-default/index.js
index 3eca2414..deb0ffbc 100644
--- a/packages/@vuepress/theme-default/index.js
+++ b/packages/@vuepress/theme-default/index.js
@@ -18,12 +18,27 @@ module.exports = (options, ctx) => ({
   },
 
   plugins: [
-    '@vuepress/active-header-links',
+    ['@vuepress/active-header-links', options.activeHeaderLinks],
     '@vuepress/search',
     '@vuepress/plugin-nprogress',
-    ['@vuepress/container', { type: 'tip' }],
-    ['@vuepress/container', { type: 'warning' }],
-    ['@vuepress/container', { type: 'danger' }],
+    ['container', {
+      type: 'tip',
+      defaultTitle: {
+        '/zh/': '提示'
+      }
+    }],
+    ['container', {
+      type: 'warning',
+      defaultTitle: {
+        '/zh/': '注意'
+      }
+    }],
+    ['container', {
+      type: 'danger',
+      defaultTitle: {
+        '/zh/': '警告'
+      }
+    }],
     ['prism', {
       theme: 'tomorrow',
       preview: {
diff --git a/packages/@vuepress/theme-default/layouts/404.vue b/packages/@vuepress/theme-default/layouts/404.vue
index 4eef36d3..6aefe797 100644
--- a/packages/@vuepress/theme-default/layouts/404.vue
+++ b/packages/@vuepress/theme-default/layouts/404.vue
@@ -24,5 +24,3 @@ export default {
   }
 }
 </script>
-
-<style src="../styles/theme.styl" lang="stylus"></style>
diff --git a/packages/@vuepress/theme-default/package.json b/packages/@vuepress/theme-default/package.json
index 18690752..192634b9 100644
--- a/packages/@vuepress/theme-default/package.json
+++ b/packages/@vuepress/theme-default/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@vuepress/theme-default",
-  "version": "1.0.0-alpha.44",
+  "version": "1.0.0-alpha.47",
   "description": "Default theme for VuePress",
   "main": "index.js",
   "publishConfig": {
@@ -30,12 +30,12 @@
   },
   "homepage": "https://github.com/vuejs/vuepress/packages/@vuepress/theme-default#readme",
   "dependencies": {
-    "@vuepress/plugin-active-header-links": "^1.0.0-alpha.44",
-    "@vuepress/plugin-container": "^1.0.0-alpha.44",
-    "@vuepress/plugin-nprogress": "^1.0.0-alpha.44",
-    "@vuepress/plugin-search": "^1.0.0-alpha.44",
+    "@vuepress/plugin-active-header-links": "^1.0.0-alpha.47",
+    "@vuepress/plugin-nprogress": "^1.0.0-alpha.47",
+    "@vuepress/plugin-search": "^1.0.0-alpha.47",
     "docsearch.js": "^2.5.2",
     "stylus": "^0.54.5",
-    "stylus-loader": "^3.0.2"
+    "stylus-loader": "^3.0.2",
+    "vuepress-plugin-container": "^2.0.0"
   }
 }
diff --git a/packages/@vuepress/theme-default/styles/theme.styl b/packages/@vuepress/theme-default/styles/index.styl
similarity index 100%
rename from packages/@vuepress/theme-default/styles/theme.styl
rename to packages/@vuepress/theme-default/styles/index.styl
diff --git a/packages/@vuepress/theme-vue/package.json b/packages/@vuepress/theme-vue/package.json
index cad2ac10..92825eb4 100644
--- a/packages/@vuepress/theme-vue/package.json
+++ b/packages/@vuepress/theme-vue/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@vuepress/theme-vue",
-  "version": "1.0.0-alpha.44",
+  "version": "1.0.0-alpha.47",
   "description": "VuePress theme for official Vue projects",
   "main": "index.js",
   "publishConfig": {
@@ -30,6 +30,6 @@
   },
   "homepage": "https://github.com/vuejs/vuepress/packages/@vuepress/theme-vue#readme",
   "dependencies": {
-    "@vuepress/theme-default": "^1.0.0-alpha.44"
+    "@vuepress/theme-default": "^1.0.0-alpha.47"
   }
 }
diff --git a/packages/blog/package.json b/packages/blog/package.json
index e8eb5e74..f53f4085 100644
--- a/packages/blog/package.json
+++ b/packages/blog/package.json
@@ -2,13 +2,13 @@
   "private": true,
   "name": "blog",
   "description": "blog of VuePress",
-  "version": "1.0.0-alpha.44",
+  "version": "1.0.0-alpha.47",
   "scripts": {
     "dev": "vuepress dev source --temp .temp",
     "build": "vuepress build source --temp .temp"
   },
   "dependencies": {
-    "@vuepress/theme-blog": "^1.0.0-alpha.44",
-    "vuepress": "^1.0.0-alpha.44"
+    "@vuepress/theme-blog": "^1.0.0-alpha.47",
+    "vuepress": "^1.0.0-alpha.47"
   }
 }
diff --git a/packages/docs/docs/.vuepress/config.js b/packages/docs/docs/.vuepress/config.js
index 37ab4d78..63158b8e 100755
--- a/packages/docs/docs/.vuepress/config.js
+++ b/packages/docs/docs/.vuepress/config.js
@@ -74,12 +74,12 @@ module.exports = ctx => ({
     ['@vuepress/google-analytics', {
       ga: 'UA-128189152-1'
     }],
-    ['@vuepress/container', {
+    ['container', {
       type: 'vue',
       before: '<pre class="vue-container"><code>',
       after: '</code></pre>',
     }],
-    ['@vuepress/container', {
+    ['container', {
       type: 'upgrade',
       before: info => `<UpgradePath title="${info}">`,
       after: '</UpgradePath>',
diff --git a/packages/docs/docs/config/README.md b/packages/docs/docs/config/README.md
index 0dfe76dc..88600862 100644
--- a/packages/docs/docs/config/README.md
+++ b/packages/docs/docs/config/README.md
@@ -356,7 +356,7 @@ module.exports = {
 
 ### evergreen
 
-- Type: `boolean`
+- Type: `boolean | Function`
 - Default: `false`
 
 Set to `true` if you are only targeting evergreen browsers. This will disable ES5 transpilation and polyfills for IE, and result in faster builds and smaller files.
diff --git a/packages/docs/docs/guide/markdown.md b/packages/docs/docs/guide/markdown.md
index 3d53ebe2..fe24af6d 100644
--- a/packages/docs/docs/guide/markdown.md
+++ b/packages/docs/docs/guide/markdown.md
@@ -131,7 +131,7 @@ Danger zone, do not proceed
 
 **Also see:**
 
-- [@vuepress/plugin-container](../plugin/official/plugin-container.md)
+- [vuepress-plugin-container](https://vuepress.github.io/plugins/container/)
 
 ## Syntax Highlighting in Code Blocks
 
diff --git a/packages/docs/docs/plugin/README.md b/packages/docs/docs/plugin/README.md
index 09d6378d..6c16067f 100644
--- a/packages/docs/docs/plugin/README.md
+++ b/packages/docs/docs/plugin/README.md
@@ -5,6 +5,6 @@ Plugins usually add global-level functionality to VuePress. There is no strictly
 1. Extend the page's metadata generated at compile time. e.g. [@vuepress/plugin-last-updated](./official/plugin-last-updated.md);
 2. Generate extra files before or after compilation. e.g. [@vuepress/plugin-pwa](./official/plugin-pwa.md);
 3. Inject global UI. e.g. [@vuepress/plugin-back-to-top](./official/plugin-back-to-top.md);
-4. Exntend command of CLI，如 [vuepress-plugin-export](https://github.com/ulivz/vuepress-plugin-export)。
+4. Extend the CLI with custom commands. e.g. [vuepress-plugin-export](https://github.com/ulivz/vuepress-plugin-export).
 
 ![Architecture of VuePress](/architecture.png)
diff --git a/packages/docs/docs/plugin/official/plugin-container.md b/packages/docs/docs/plugin/official/plugin-container.md
deleted file mode 100644
index 0ee876ef..00000000
--- a/packages/docs/docs/plugin/official/plugin-container.md
+++ /dev/null
@@ -1,80 +0,0 @@
----
-title: container
-metaTitle: A plugin for registering markdown containers | VuePress
----
-
-# [@vuepress/plugin-container](https://github.com/vuejs/vuepress/tree/master/packages/@vuepress/plugin-container)
-
-> A plugin for registering markdown containers, based on [markdown-it-container](https://github.com/markdown-it/markdown-it-container). <Badge text="1.0.0-alpha.41+"/>
-
-## Install
-
-```bash
-yarn add -D @vuepress/plugin-container@next
-# OR npm install -D @vuepress/plugin-container@next
-```
-
-## Usage
-
-```javascript
-module.exports = {
-  plugins: ['@vuepress/container'] 
-}
-```
-
-## Options
-
-### type
-
-- Type: `string`
-- This is a required option.
-
-The type for the container. For example, if `type` is set to `foo`, only the following syntax will be parsed as a container:
-
-```md
-::: foo bar
-write something here ~
-:::
-```
-
-### defaultTitle
-
-- Type: `string`
-- Default: the upper case of `type`
-
-The default title for the container. If no title is provided, `defaultTitle` will be shown as the title of the container.
-
-### before
-
-- Type: `string | Function`
-- Default: `undefined`
-
-String to be placed before the block. If specified as a function, an argument `info` will be passed to it. (In the example above, `info` will be `bar`.) If specified, it will override `defaultTitle`.
-
-### after
-
-- Type: `string | Function`
-- Default: `undefined`
-
-String to be placed after the block. If specified as a function, an argument `info` will be passed to it. (In the example above, `info` will be `bar`.) If specified, it will override `defaultTitle`.
-
-### validate
-
-- Type: `Function`
-- Default: `undefined`
-
-A function to validate tail after opening marker, should return `true` on success.
-
-### render
-
-- Type: `Function`
-- Default: `undefined`
-
-The renderer function for opening/closing tokens. If specified, it will override `before`, `after` and `defaultTitle`.
-
-### marker
-
-- Type: `string`
-- Default: `':'`
-
-The character to use as a delimiter.
diff --git a/packages/docs/docs/plugin/official/plugin-pwa.md b/packages/docs/docs/plugin/official/plugin-pwa.md
index ecee4ca1..0e532c11 100644
--- a/packages/docs/docs/plugin/official/plugin-pwa.md
+++ b/packages/docs/docs/plugin/official/plugin-pwa.md
@@ -45,6 +45,14 @@ The `serviceWorker` option only handles the service worker. To make your site fu
 Also, only enable this if you are able to deploy your site with SSL, since service worker can only be registered under HTTPs URLs.
 :::
 
+### generateSWConfig
+
+- Type: `object`
+- Default: `{}`
+
+[generateSW config](https://developers.google.com/web/tools/workbox/modules/workbox-build#full_generatesw_config) of workbox-build.
+
+
 ### updatePopup
 
 - Type: `boolean|object`
diff --git a/packages/docs/docs/zh/config/README.md b/packages/docs/docs/zh/config/README.md
index 21956e7a..20f863a3 100644
--- a/packages/docs/docs/zh/config/README.md
+++ b/packages/docs/docs/zh/config/README.md
@@ -348,7 +348,7 @@ module.exports = {
 
 ### evergreen
 
-- 类型: `boolean`
+- 类型: `boolean | Function`
 - 默认值: `false`
 
 如果你的对象只有那些 “常青树” 浏览器，你可以将其设置成 `true`，这将会禁止 ESNext 到 ES5 的转译以及对 IE 的 polyfills，同时会带来更快的构建速度和更小的文件体积。
diff --git a/packages/docs/docs/zh/guide/markdown.md b/packages/docs/docs/zh/guide/markdown.md
index dbc5ab02..4dc0eda9 100644
--- a/packages/docs/docs/zh/guide/markdown.md
+++ b/packages/docs/docs/zh/guide/markdown.md
@@ -129,7 +129,7 @@ Danger zone, do not proceed
 
 **参考:**
 
-- [@vuepress/plugin-container](../plugin/official/plugin-container.md)
+- [vuepress-plugin-container](https://vuepress.github.io/plugins/container/)
 
 ## 代码块中的语法高亮
 
diff --git a/packages/docs/docs/zh/plugin/official/plugin-container.md b/packages/docs/docs/zh/plugin/official/plugin-container.md
deleted file mode 100644
index 200aeffb..00000000
--- a/packages/docs/docs/zh/plugin/official/plugin-container.md
+++ /dev/null
@@ -1,80 +0,0 @@
----
-title: container
-metaTitle: Markdown 容器插件 | VuePress
----
-
-# [@vuepress/plugin-container](https://github.com/vuejs/vuepress/tree/master/packages/@vuepress/plugin-container)
-
-> 用于注册 Markdown 容器的插件，基于 [markdown-it-container](https://github.com/markdown-it/markdown-it-container)。<Badge text="1.0.0-alpha.41+"/>
-
-## 安装
-
-```bash
-yarn add -D @vuepress/plugin-container@next
-# OR npm install -D @vuepress/plugin-container@next
-```
-
-## 使用
-
-```javascript
-module.exports = {
-  plugins: ['@vuepress/container'] 
-}
-```
-
-## 选项
-
-### type
-
-- 类型: `string`
-- 这是一个必需的选项
-
-容器的类型。举个例子，如果 `type` 被设置为 `foo`，则仅有下面的语法会被视为对应的容器：
-
-```md
-::: foo bar
-随便写点啥 ~
-:::
-```
-
-### defaultTitle
-
-- 类型: `string`
-- 默认值: `type` 的大写形式
-
-容器的默认标题。如果没有提供标题，则会使用 `defaultTitle` 作为容器的标题。
-
-### before
-
-- 类型: `string | Function`
-- 默认值: `undefined`
-
-要插入在容器前的 HTML。如果设置为一个函数，将传入当前的 `info` 作为第一个参数。（在上面的例子中，`info` 的值为 `bar`。）如果设置了这个值，它将覆盖 `defaultTitle` 的效果。
-
-### after
-
-- 类型: `string | Function`
-- 默认值: `undefined`
-
-要插入在容器后的 HTML。如果设置为一个函数，将传入当前的 `info` 作为第一个参数。（在上面的例子中，`info` 的值为 `bar`。）如果设置了这个值，它将覆盖 `defaultTitle` 的效果。
-
-### validate
-
-- 类型: `Function`
-- 默认值: `undefined`
-
-一个用于判定容器是否结束的函数。当认定容器范围结束时应返回一个 `true`。
-
-### render
-
-- 类型: `Function`
-- 默认值: `undefined`
-
-容器开头和结束 token 的渲染函数。如果设置了这个值，它将覆盖 `before`, `after` 和 `defaultTitle` 的效果。
-
-### marker
-
-- 类型: `string`
-- 默认值: `':'`
-
-用于分隔符的字符。
diff --git a/packages/docs/docs/zh/plugin/official/plugin-pwa.md b/packages/docs/docs/zh/plugin/official/plugin-pwa.md
index 14b514d5..6823f641 100644
--- a/packages/docs/docs/zh/plugin/official/plugin-pwa.md
+++ b/packages/docs/docs/zh/plugin/official/plugin-pwa.md
@@ -44,6 +44,14 @@ module.exports = {
 此外，只有您能够使用 SSL 部署您的站点时才能启用此功能，因为 service worker 只能在 HTTPs 的 URL 下注册。
 :::
 
+### generateSWConfig
+
+- 类型: `object`
+- 默认值: `{}`
+
+workbox-build 的 [generateSW config](https://developers.google.com/web/tools/workbox/modules/workbox-build#full_generatesw_config)。
+
+
 ### updatePopup
 
 - 类型: `boolean|popupConfig`
diff --git a/packages/docs/docs/zh/theme/default-theme-config.md b/packages/docs/docs/zh/theme/default-theme-config.md
index b31f2567..8516cf5f 100644
--- a/packages/docs/docs/zh/theme/default-theme-config.md
+++ b/packages/docs/docs/zh/theme/default-theme-config.md
@@ -1,6 +1,6 @@
 # 默认主题配置
 
-::: tip 提示
+::: tip
 本页所列的选项仅对默认主题生效。如果你在使用一个自定义主题，选项可能会有不同。
 :::
 
diff --git a/packages/docs/docs/zh/theme/using-a-theme.md b/packages/docs/docs/zh/theme/using-a-theme.md
index 2c4f729d..e6b7f3c5 100644
--- a/packages/docs/docs/zh/theme/using-a-theme.md
+++ b/packages/docs/docs/zh/theme/using-a-theme.md
@@ -46,6 +46,6 @@ module.exports = {
 }
 ```
 
-::: warning 注意
+::: warning
 以 `@vuepress/theme-` 开头的主题是官方维护的主题。
 :::
diff --git a/packages/docs/package.json b/packages/docs/package.json
index 9e293a66..aed8f4c1 100644
--- a/packages/docs/package.json
+++ b/packages/docs/package.json
@@ -1,6 +1,6 @@
 {
   "private": true,
-  "version": "1.0.0-alpha.44",
+  "version": "1.0.0-alpha.47",
   "name": "docs",
   "description": "docs of VuePress",
   "scripts": {
@@ -25,13 +25,13 @@
   },
   "homepage": "https://github.com/vuejs/vuepress#readme",
   "devDependencies": {
-    "@vuepress/plugin-back-to-top": "^1.0.0-alpha.44",
-    "@vuepress/plugin-google-analytics": "^1.0.0-alpha.44",
-    "@vuepress/plugin-medium-zoom": "^1.0.0-alpha.44",
-    "@vuepress/plugin-pwa": "^1.0.0-alpha.44",
-    "@vuepress/theme-vue": "^1.0.0-alpha.44",
+    "@vuepress/plugin-back-to-top": "^1.0.0-alpha.47",
+    "@vuepress/plugin-google-analytics": "^1.0.0-alpha.47",
+    "@vuepress/plugin-medium-zoom": "^1.0.0-alpha.47",
+    "@vuepress/plugin-pwa": "^1.0.0-alpha.47",
+    "@vuepress/theme-vue": "^1.0.0-alpha.47",
     "vue-toasted": "^1.1.25",
-    "vuepress": "^1.0.0-alpha.44",
+    "vuepress": "^1.0.0-alpha.47",
     "vuepress-plugin-flowchart": "^1.4.2"
   }
 }
diff --git a/packages/vuepress/package.json b/packages/vuepress/package.json
index 674a0fea..60c0bd11 100644
--- a/packages/vuepress/package.json
+++ b/packages/vuepress/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vuepress",
-  "version": "1.0.0-alpha.44",
+  "version": "1.0.0-alpha.47",
   "description": "Minimalistic doc generator with Vue component based layout system",
   "main": "index.js",
   "repository": {
@@ -29,8 +29,8 @@
   },
   "homepage": "https://github.com/vuejs/vuepress#readme",
   "dependencies": {
-    "@vuepress/core": "^1.0.0-alpha.44",
-    "@vuepress/theme-default": "^1.0.0-alpha.44",
+    "@vuepress/core": "^1.0.0-alpha.47",
+    "@vuepress/theme-default": "^1.0.0-alpha.47",
     "cac": "^6.3.9"
   },
   "engines": {
diff --git a/yarn.lock b/yarn.lock
index f5cd1481..636c2ba4 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1347,6 +1347,10 @@
   version "10.12.29"
   resolved "https://registry.yarnpkg.com/@types/node/-/node-10.12.29.tgz#c2c8d2d27bb55649fbafe8ea1731658421f38acf"
 
+"@types/q@^1.5.1":
+  version "1.5.2"
+  resolved "https://registry.yarnpkg.com/@types/q/-/q-1.5.2.tgz#690a1475b84f2a884fd07cd797c00f5f31356ea8"
+
 "@types/semver@^5.5.0":
   version "5.5.0"
   resolved "https://registry.yarnpkg.com/@types/semver/-/semver-5.5.0.tgz#146c2a29ee7d3bae4bf2fcb274636e264c813c45"
@@ -1706,7 +1710,7 @@ algoliasearch@^3.24.5:
     semver "^5.1.0"
     tunnel-agent "^0.6.0"
 
-alphanum-sort@^1.0.1, alphanum-sort@^1.0.2:
+alphanum-sort@^1.0.0, alphanum-sort@^1.0.1, alphanum-sort@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/alphanum-sort/-/alphanum-sort-1.0.2.tgz#97a1119649b211ad33691d9f9f486a8ec9fbe0a3"
 
@@ -2122,7 +2126,7 @@ bonjour@^3.5.0:
     multicast-dns "^6.0.1"
     multicast-dns-service-types "^1.1.0"
 
-boolbase@~1.0.0:
+boolbase@^1.0.0, boolbase@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/boolbase/-/boolbase-1.0.0.tgz#68dff5fbe60c51eb37725ea9e3ed310dcc1e776e"
 
@@ -2229,6 +2233,14 @@ browserslist@^2.11.3:
     caniuse-lite "^1.0.30000792"
     electron-to-chromium "^1.3.30"
 
+browserslist@^4.0.0:
+  version "4.5.4"
+  resolved "https://registry.yarnpkg.com/browserslist/-/browserslist-4.5.4.tgz#166c4ecef3b51737a42436ea8002aeea466ea2c7"
+  dependencies:
+    caniuse-lite "^1.0.30000955"
+    electron-to-chromium "^1.3.122"
+    node-releases "^1.1.13"
+
 browserslist@^4.3.4:
   version "4.4.2"
   resolved "https://registry.yarnpkg.com/browserslist/-/browserslist-4.4.2.tgz#6ea8a74d6464bb0bd549105f659b41197d8f0ba2"
@@ -2434,10 +2446,23 @@ caniuse-api@^1.5.2:
     lodash.memoize "^4.1.2"
     lodash.uniq "^4.5.0"
 
+caniuse-api@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/caniuse-api/-/caniuse-api-3.0.0.tgz#5e4d90e2274961d46291997df599e3ed008ee4c0"
+  dependencies:
+    browserslist "^4.0.0"
+    caniuse-lite "^1.0.0"
+    lodash.memoize "^4.1.2"
+    lodash.uniq "^4.5.0"
+
 caniuse-db@^1.0.30000529, caniuse-db@^1.0.30000634, caniuse-db@^1.0.30000639:
   version "1.0.30000939"
   resolved "https://registry.yarnpkg.com/caniuse-db/-/caniuse-db-1.0.30000939.tgz#8cb54a9868fe040fbf2e2441408c68b7008912e8"
 
+caniuse-lite@^1.0.0, caniuse-lite@^1.0.30000955:
+  version "1.0.30000957"
+  resolved "https://registry.yarnpkg.com/caniuse-lite/-/caniuse-lite-1.0.30000957.tgz#fb1026bf184d7d62c685205358c3b24b9e29f7b3"
+
 caniuse-lite@^1.0.30000792, caniuse-lite@^1.0.30000805, caniuse-lite@^1.0.30000939:
   version "1.0.30000939"
   resolved "https://registry.yarnpkg.com/caniuse-lite/-/caniuse-lite-1.0.30000939.tgz#b9ab7ac9e861bf78840b80c5dfbc471a5cd7e679"
@@ -2594,6 +2619,14 @@ co@^4.6.0:
   version "4.6.0"
   resolved "https://registry.yarnpkg.com/co/-/co-4.6.0.tgz#6ea6bdf3d853ae54ccb8e47bfa0bf3f9031fb184"
 
+coa@^2.0.2:
+  version "2.0.2"
+  resolved "https://registry.yarnpkg.com/coa/-/coa-2.0.2.tgz#43f6c21151b4ef2bf57187db0d73de229e3e7ec3"
+  dependencies:
+    "@types/q" "^1.5.1"
+    chalk "^2.4.1"
+    q "^1.1.2"
+
 coa@~1.0.1:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/coa/-/coa-1.0.4.tgz#a9ef153660d6a86a8bdec0289a5c684d217432fd"
@@ -2611,7 +2644,7 @@ collection-visit@^1.0.0:
     map-visit "^1.0.0"
     object-visit "^1.0.0"
 
-color-convert@^1.3.0, color-convert@^1.9.0:
+color-convert@^1.3.0, color-convert@^1.9.0, color-convert@^1.9.1:
   version "1.9.3"
   resolved "https://registry.yarnpkg.com/color-convert/-/color-convert-1.9.3.tgz#bb71850690e1f136567de629d2d5471deda4c1e8"
   dependencies:
@@ -2631,6 +2664,13 @@ color-string@^0.3.0:
   dependencies:
     color-name "^1.0.0"
 
+color-string@^1.5.2:
+  version "1.5.3"
+  resolved "https://registry.yarnpkg.com/color-string/-/color-string-1.5.3.tgz#c9bbc5f01b58b5492f3d6857459cb6590ce204cc"
+  dependencies:
+    color-name "^1.0.0"
+    simple-swizzle "^0.2.2"
+
 color@^0.11.0:
   version "0.11.4"
   resolved "https://registry.yarnpkg.com/color/-/color-0.11.4.tgz#6d7b5c74fb65e841cd48792ad1ed5e07b904d764"
@@ -2639,6 +2679,13 @@ color@^0.11.0:
     color-convert "^1.3.0"
     color-string "^0.3.0"
 
+color@^3.0.0:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/color/-/color-3.1.0.tgz#d8e9fb096732875774c84bf922815df0308d0ffc"
+  dependencies:
+    color-convert "^1.9.1"
+    color-string "^1.5.2"
+
 colormin@^1.0.5:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/colormin/-/colormin-1.1.2.tgz#ea2f7420a72b96881a38aae59ec124a6f7298133"
@@ -3055,6 +3102,15 @@ cosmiconfig@^4.0.0:
     parse-json "^4.0.0"
     require-from-string "^2.0.1"
 
+cosmiconfig@^5.0.0:
+  version "5.2.0"
+  resolved "https://registry.yarnpkg.com/cosmiconfig/-/cosmiconfig-5.2.0.tgz#45038e4d28a7fe787203aede9c25bca4a08b12c8"
+  dependencies:
+    import-fresh "^2.0.0"
+    is-directory "^0.3.1"
+    js-yaml "^3.13.0"
+    parse-json "^4.0.0"
+
 cosmiconfig@^5.0.2, cosmiconfig@^5.1.0:
   version "5.1.0"
   resolved "https://registry.yarnpkg.com/cosmiconfig/-/cosmiconfig-5.1.0.tgz#6c5c35e97f37f985061cdf653f114784231185cf"
@@ -3127,10 +3183,17 @@ crypto-browserify@^3.11.0:
     randombytes "^2.0.0"
     randomfill "^1.0.3"
 
-css-color-names@0.0.4:
+css-color-names@0.0.4, 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-declaration-sorter@^4.0.1:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/css-declaration-sorter/-/css-declaration-sorter-4.0.1.tgz#c198940f63a76d7e36c1e71018b001721054cb22"
+  dependencies:
+    postcss "^7.0.1"
+    timsort "^0.3.0"
+
 css-loader@^0.28.11:
   version "0.28.11"
   resolved "https://registry.yarnpkg.com/css-loader/-/css-loader-0.28.11.tgz#c3f9864a700be2711bb5a2462b2389b1a392dab7"
@@ -3154,6 +3217,10 @@ css-parse@1.7.x:
   version "1.7.0"
   resolved "https://registry.yarnpkg.com/css-parse/-/css-parse-1.7.0.tgz#321f6cf73782a6ff751111390fc05e2c657d8c9b"
 
+css-select-base-adapter@^0.1.1:
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/css-select-base-adapter/-/css-select-base-adapter-0.1.1.tgz#3b2ff4972cc362ab88561507a95408a1432135d7"
+
 css-select@^1.1.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/css-select/-/css-select-1.2.0.tgz#2b3a110539c5355f1cd8d314623e870b121ec858"
@@ -3163,6 +3230,15 @@ css-select@^1.1.0:
     domutils "1.5.1"
     nth-check "~1.0.1"
 
+css-select@^2.0.0:
+  version "2.0.2"
+  resolved "https://registry.yarnpkg.com/css-select/-/css-select-2.0.2.tgz#ab4386cec9e1f668855564b17c3733b43b2a5ede"
+  dependencies:
+    boolbase "^1.0.0"
+    css-what "^2.1.2"
+    domutils "^1.7.0"
+    nth-check "^1.0.2"
+
 css-selector-tokenizer@^0.7.0:
   version "0.7.1"
   resolved "https://registry.yarnpkg.com/css-selector-tokenizer/-/css-selector-tokenizer-0.7.1.tgz#a177271a8bca5019172f4f891fc6eed9cbf68d5d"
@@ -3171,7 +3247,29 @@ css-selector-tokenizer@^0.7.0:
     fastparse "^1.1.1"
     regexpu-core "^1.0.0"
 
-css-what@2.1:
+css-tree@1.0.0-alpha.28:
+  version "1.0.0-alpha.28"
+  resolved "https://registry.yarnpkg.com/css-tree/-/css-tree-1.0.0-alpha.28.tgz#8e8968190d886c9477bc8d61e96f61af3f7ffa7f"
+  dependencies:
+    mdn-data "~1.1.0"
+    source-map "^0.5.3"
+
+css-tree@1.0.0-alpha.29:
+  version "1.0.0-alpha.29"
+  resolved "https://registry.yarnpkg.com/css-tree/-/css-tree-1.0.0-alpha.29.tgz#3fa9d4ef3142cbd1c301e7664c1f352bd82f5a39"
+  dependencies:
+    mdn-data "~1.1.0"
+    source-map "^0.5.3"
+
+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"
+
+css-url-regex@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/css-url-regex/-/css-url-regex-1.1.0.tgz#83834230cc9f74c457de59eebd1543feeb83b7ec"
+
+css-what@2.1, css-what@^2.1.2:
   version "2.1.3"
   resolved "https://registry.yarnpkg.com/css-what/-/css-what-2.1.3.tgz#a6d7604573365fe74686c3f311c56513d88285f2"
 
@@ -3192,6 +3290,59 @@ cssesc@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/cssesc/-/cssesc-2.0.0.tgz#3b13bd1bb1cb36e1bcb5a4dcd27f54c5dcb35703"
 
+cssnano-preset-default@^4.0.7:
+  version "4.0.7"
+  resolved "https://registry.yarnpkg.com/cssnano-preset-default/-/cssnano-preset-default-4.0.7.tgz#51ec662ccfca0f88b396dcd9679cdb931be17f76"
+  dependencies:
+    css-declaration-sorter "^4.0.1"
+    cssnano-util-raw-cache "^4.0.1"
+    postcss "^7.0.0"
+    postcss-calc "^7.0.1"
+    postcss-colormin "^4.0.3"
+    postcss-convert-values "^4.0.1"
+    postcss-discard-comments "^4.0.2"
+    postcss-discard-duplicates "^4.0.2"
+    postcss-discard-empty "^4.0.1"
+    postcss-discard-overridden "^4.0.1"
+    postcss-merge-longhand "^4.0.11"
+    postcss-merge-rules "^4.0.3"
+    postcss-minify-font-values "^4.0.2"
+    postcss-minify-gradients "^4.0.2"
+    postcss-minify-params "^4.0.2"
+    postcss-minify-selectors "^4.0.2"
+    postcss-normalize-charset "^4.0.1"
+    postcss-normalize-display-values "^4.0.2"
+    postcss-normalize-positions "^4.0.2"
+    postcss-normalize-repeat-style "^4.0.2"
+    postcss-normalize-string "^4.0.2"
+    postcss-normalize-timing-functions "^4.0.2"
+    postcss-normalize-unicode "^4.0.1"
+    postcss-normalize-url "^4.0.1"
+    postcss-normalize-whitespace "^4.0.2"
+    postcss-ordered-values "^4.1.2"
+    postcss-reduce-initial "^4.0.3"
+    postcss-reduce-transforms "^4.0.2"
+    postcss-svgo "^4.0.2"
+    postcss-unique-selectors "^4.0.1"
+
+cssnano-util-get-arguments@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/cssnano-util-get-arguments/-/cssnano-util-get-arguments-4.0.0.tgz#ed3a08299f21d75741b20f3b81f194ed49cc150f"
+
+cssnano-util-get-match@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/cssnano-util-get-match/-/cssnano-util-get-match-4.0.0.tgz#c0e4ca07f5386bb17ec5e52250b4f5961365156d"
+
+cssnano-util-raw-cache@^4.0.1:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/cssnano-util-raw-cache/-/cssnano-util-raw-cache-4.0.1.tgz#b26d5fd5f72a11dfe7a7846fb4c67260f96bf282"
+  dependencies:
+    postcss "^7.0.0"
+
+cssnano-util-same-parent@^4.0.0:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/cssnano-util-same-parent/-/cssnano-util-same-parent-4.0.1.tgz#574082fb2859d2db433855835d9a8456ea18bbf3"
+
 cssnano@^3.10.0:
   version "3.10.0"
   resolved "https://registry.yarnpkg.com/cssnano/-/cssnano-3.10.0.tgz#4f38f6cea2b9b17fa01490f23f1dc68ea65c1c38"
@@ -3229,6 +3380,21 @@ cssnano@^3.10.0:
     postcss-value-parser "^3.2.3"
     postcss-zindex "^2.0.1"
 
+cssnano@^4.1.0:
+  version "4.1.10"
+  resolved "https://registry.yarnpkg.com/cssnano/-/cssnano-4.1.10.tgz#0ac41f0b13d13d465487e111b778d42da631b8b2"
+  dependencies:
+    cosmiconfig "^5.0.0"
+    cssnano-preset-default "^4.0.7"
+    is-resolvable "^1.0.0"
+    postcss "^7.0.0"
+
+csso@^3.5.1:
+  version "3.5.1"
+  resolved "https://registry.yarnpkg.com/csso/-/csso-3.5.1.tgz#7b9eb8be61628973c1b261e169d2f024008e758b"
+  dependencies:
+    css-tree "1.0.0-alpha.29"
+
 csso@~2.3.1:
   version "2.3.2"
   resolved "https://registry.yarnpkg.com/csso/-/csso-2.3.2.tgz#ddd52c587033f49e94b71fc55569f252e8ff5f85"
@@ -3384,7 +3550,7 @@ defaults@^1.0.3:
   dependencies:
     clone "^1.0.2"
 
-define-properties@^1.1.2:
+define-properties@^1.1.2, define-properties@^1.1.3:
   version "1.1.3"
   resolved "https://registry.yarnpkg.com/define-properties/-/define-properties-1.1.3.tgz#cf88da6cbee26fe6db7094f61d870cbd84cee9f1"
   dependencies:
@@ -3586,7 +3752,7 @@ domutils@1.5.1:
     dom-serializer "0"
     domelementtype "1"
 
-domutils@^1.5.1:
+domutils@^1.5.1, domutils@^1.7.0:
   version "1.7.0"
   resolved "https://registry.yarnpkg.com/domutils/-/domutils-1.7.0.tgz#56ea341e834e06e6748af7a1cb25da67ea9f8c2a"
   dependencies:
@@ -3599,7 +3765,7 @@ dot-prop@^3.0.0:
   dependencies:
     is-obj "^1.0.0"
 
-dot-prop@^4.2.0:
+dot-prop@^4.1.1, dot-prop@^4.2.0:
   version "4.2.0"
   resolved "https://registry.yarnpkg.com/dot-prop/-/dot-prop-4.2.0.tgz#1f19e0c2e1aa0e32797c49799f2837ac6af69c57"
   dependencies:
@@ -3644,6 +3810,10 @@ electron-to-chromium@^1.2.7, electron-to-chromium@^1.3.113, electron-to-chromium
   version "1.3.113"
   resolved "https://registry.yarnpkg.com/electron-to-chromium/-/electron-to-chromium-1.3.113.tgz#b1ccf619df7295aea17bc6951dc689632629e4a9"
 
+electron-to-chromium@^1.3.122:
+  version "1.3.124"
+  resolved "https://registry.yarnpkg.com/electron-to-chromium/-/electron-to-chromium-1.3.124.tgz#861fc0148748a11b3e5ccebdf8b795ff513fa11f"
+
 elegant-spinner@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/elegant-spinner/-/elegant-spinner-1.0.1.tgz#db043521c95d7e303fd8f345bedc3349cfb0729e"
@@ -3715,7 +3885,7 @@ error-ex@^1.2.0, error-ex@^1.3.1:
   dependencies:
     is-arrayish "^0.2.1"
 
-es-abstract@^1.5.1:
+es-abstract@^1.12.0, es-abstract@^1.5.1:
   version "1.13.0"
   resolved "https://registry.yarnpkg.com/es-abstract/-/es-abstract-1.13.0.tgz#ac86145fdd5099d8dd49558ccba2eaf9b88e24e9"
   dependencies:
@@ -4679,7 +4849,7 @@ has-values@^1.0.0:
     is-number "^3.0.0"
     kind-of "^4.0.0"
 
-has@^1.0.1, has@^1.0.3:
+has@^1.0.0, has@^1.0.1, has@^1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/has/-/has-1.0.3.tgz#722d7cbfc1f6aa8241f16dd814e011e1f41e8796"
   dependencies:
@@ -4707,6 +4877,10 @@ he@1.2.x, he@^1.1.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/he/-/he-1.2.0.tgz#84ae65fa7eafb165fddb61566ae14baf05664f0f"
 
+hex-color-regex@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/hex-color-regex/-/hex-color-regex-1.1.0.tgz#4c06fccb4602fe2602b3c93df82d7e7dbf1a8a8e"
+
 hmac-drbg@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/hmac-drbg/-/hmac-drbg-1.0.1.tgz#d2745701025a6c775a6c545793ed502fc0c649a1"
@@ -4739,6 +4913,14 @@ hpack.js@^2.1.6:
     readable-stream "^2.0.1"
     wbuf "^1.1.0"
 
+hsl-regex@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/hsl-regex/-/hsl-regex-1.0.0.tgz#d49330c789ed819e276a4c0d272dffa30b18fe6e"
+
+hsla-regex@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/hsla-regex/-/hsla-regex-1.0.0.tgz#c1ce7a3168c8c6614033a4b5f7877f3b225f9c38"
+
 html-comment-regex@^1.1.0:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/html-comment-regex/-/html-comment-regex-1.1.2.tgz#97d4688aeb5c81886a364faa0cad1dda14d433a7"
@@ -5071,6 +5253,10 @@ 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 "0.3.2"
+  resolved "https://registry.yarnpkg.com/is-arrayish/-/is-arrayish-0.3.2.tgz#4574a2ae56f7ab206896fb431eaeed066fdf8f03"
+
 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"
@@ -5097,6 +5283,17 @@ is-ci@^2.0.0:
   dependencies:
     ci-info "^2.0.0"
 
+is-color-stop@^1.0.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/is-color-stop/-/is-color-stop-1.1.0.tgz#cfff471aee4dd5c9e158598fbe12967b5cdad345"
+  dependencies:
+    css-color-names "^0.0.4"
+    hex-color-regex "^1.1.0"
+    hsl-regex "^1.0.0"
+    hsla-regex "^1.0.0"
+    rgb-regex "^1.0.1"
+    rgba-regex "^1.0.0"
+
 is-data-descriptor@^0.1.4:
   version "0.1.4"
   resolved "https://registry.yarnpkg.com/is-data-descriptor/-/is-data-descriptor-0.1.4.tgz#0b5ee648388e2c860282e793f1856fec3f301b56"
@@ -5259,6 +5456,12 @@ is-svg@^2.0.0:
   dependencies:
     html-comment-regex "^1.1.0"
 
+is-svg@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/is-svg/-/is-svg-3.0.0.tgz#9321dbd29c212e5ca99c4fa9794c714bcafa2f75"
+  dependencies:
+    html-comment-regex "^1.1.0"
+
 is-symbol@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/is-symbol/-/is-symbol-1.0.2.tgz#a055f6ae57192caee329e7a860118b497a950f38"
@@ -5753,6 +5956,13 @@ js-yaml@^3.11.0, js-yaml@^3.12.0, js-yaml@^3.9.0, js-yaml@^3.9.1:
     argparse "^1.0.7"
     esprima "^4.0.0"
 
+js-yaml@^3.13.0:
+  version "3.13.1"
+  resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-3.13.1.tgz#aff151b30bfdfa8e49e05da22e7415e9dfa37847"
+  dependencies:
+    argparse "^1.0.7"
+    esprima "^4.0.0"
+
 js-yaml@~3.7.0:
   version "3.7.0"
   resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-3.7.0.tgz#5c967ddd837a9bfdca5f2de84253abe8a1c03b80"
@@ -6317,6 +6527,10 @@ md5.js@^1.3.4:
     inherits "^2.0.1"
     safe-buffer "^5.1.2"
 
+mdn-data@~1.1.0:
+  version "1.1.4"
+  resolved "https://registry.yarnpkg.com/mdn-data/-/mdn-data-1.1.4.tgz#50b5d4ffc4575276573c4eedb8780812a8419f01"
+
 mdurl@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/mdurl/-/mdurl-1.0.1.tgz#fe85b2ec75a59037f2adfec100fd6c601761152e"
@@ -6750,6 +6964,12 @@ node-pre-gyp@^0.10.0:
     semver "^5.3.0"
     tar "^4"
 
+node-releases@^1.1.13:
+  version "1.1.13"
+  resolved "https://registry.yarnpkg.com/node-releases/-/node-releases-1.1.13.tgz#8c03296b5ae60c08e2ff4f8f22ae45bd2f210083"
+  dependencies:
+    semver "^5.3.0"
+
 node-releases@^1.1.8:
   version "1.1.9"
   resolved "https://registry.yarnpkg.com/node-releases/-/node-releases-1.1.9.tgz#70d0985ec4bf7de9f08fc481f5dae111889ca482"
@@ -6811,7 +7031,7 @@ normalize-url@^1.4.0:
     query-string "^4.1.0"
     sort-keys "^1.0.0"
 
-normalize-url@^3.3.0:
+normalize-url@^3.0.0, normalize-url@^3.3.0:
   version "3.3.0"
   resolved "https://registry.yarnpkg.com/normalize-url/-/normalize-url-3.3.0.tgz#b2e1c4dc4f7c6d57743df733a4f5978d18650559"
 
@@ -6900,7 +7120,7 @@ nprogress@^0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/nprogress/-/nprogress-0.2.0.tgz#cb8f34c53213d895723fcbab907e9422adbcafb1"
 
-nth-check@~1.0.1:
+nth-check@^1.0.2, nth-check@~1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/nth-check/-/nth-check-1.0.2.tgz#b2bd295c37e3dd58a3bf0700376663ba4d9cf05c"
   dependencies:
@@ -6966,6 +7186,15 @@ object.pick@^1.3.0:
   dependencies:
     isobject "^3.0.1"
 
+object.values@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/object.values/-/object.values-1.1.0.tgz#bf6810ef5da3e5325790eaaa2be213ea84624da9"
+  dependencies:
+    define-properties "^1.1.3"
+    es-abstract "^1.12.0"
+    function-bind "^1.1.1"
+    has "^1.0.3"
+
 obuf@^1.0.0, obuf@^1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/obuf/-/obuf-1.1.2.tgz#09bea3343d41859ebd446292d11c9d4db619084e"
@@ -7009,11 +7238,11 @@ optimist@^0.6.1:
     minimist "~0.0.1"
     wordwrap "~0.0.2"
 
-optimize-css-assets-webpack-plugin@^4.0.0:
-  version "4.0.3"
-  resolved "https://registry.yarnpkg.com/optimize-css-assets-webpack-plugin/-/optimize-css-assets-webpack-plugin-4.0.3.tgz#4f714e276b279700892c4a6202b7e22812d6f683"
+optimize-css-assets-webpack-plugin@^5.0.1:
+  version "5.0.1"
+  resolved "https://registry.yarnpkg.com/optimize-css-assets-webpack-plugin/-/optimize-css-assets-webpack-plugin-5.0.1.tgz#9eb500711d35165b45e7fd60ba2df40cb3eb9159"
   dependencies:
-    cssnano "^3.10.0"
+    cssnano "^4.1.0"
     last-call-webpack-plugin "^3.0.0"
 
 optionator@^0.8.1, optionator@^0.8.2:
@@ -7387,6 +7616,15 @@ postcss-calc@^5.2.0:
     postcss-message-helpers "^2.0.0"
     reduce-css-calc "^1.2.6"
 
+postcss-calc@^7.0.1:
+  version "7.0.1"
+  resolved "https://registry.yarnpkg.com/postcss-calc/-/postcss-calc-7.0.1.tgz#36d77bab023b0ecbb9789d84dcb23c4941145436"
+  dependencies:
+    css-unit-converter "^1.1.1"
+    postcss "^7.0.5"
+    postcss-selector-parser "^5.0.0-rc.4"
+    postcss-value-parser "^3.3.1"
+
 postcss-colormin@^2.1.8:
   version "2.2.2"
   resolved "https://registry.yarnpkg.com/postcss-colormin/-/postcss-colormin-2.2.2.tgz#6631417d5f0e909a3d7ec26b24c8a8d1e4f96e4b"
@@ -7395,6 +7633,16 @@ postcss-colormin@^2.1.8:
     postcss "^5.0.13"
     postcss-value-parser "^3.2.3"
 
+postcss-colormin@^4.0.3:
+  version "4.0.3"
+  resolved "https://registry.yarnpkg.com/postcss-colormin/-/postcss-colormin-4.0.3.tgz#ae060bce93ed794ac71264f08132d550956bd381"
+  dependencies:
+    browserslist "^4.0.0"
+    color "^3.0.0"
+    has "^1.0.0"
+    postcss "^7.0.0"
+    postcss-value-parser "^3.0.0"
+
 postcss-convert-values@^2.3.4:
   version "2.6.1"
   resolved "https://registry.yarnpkg.com/postcss-convert-values/-/postcss-convert-values-2.6.1.tgz#bbd8593c5c1fd2e3d1c322bb925dcae8dae4d62d"
@@ -7402,30 +7650,61 @@ postcss-convert-values@^2.3.4:
     postcss "^5.0.11"
     postcss-value-parser "^3.1.2"
 
+postcss-convert-values@^4.0.1:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/postcss-convert-values/-/postcss-convert-values-4.0.1.tgz#ca3813ed4da0f812f9d43703584e449ebe189a7f"
+  dependencies:
+    postcss "^7.0.0"
+    postcss-value-parser "^3.0.0"
+
 postcss-discard-comments@^2.0.4:
   version "2.0.4"
   resolved "https://registry.yarnpkg.com/postcss-discard-comments/-/postcss-discard-comments-2.0.4.tgz#befe89fafd5b3dace5ccce51b76b81514be00e3d"
   dependencies:
     postcss "^5.0.14"
 
+postcss-discard-comments@^4.0.2:
+  version "4.0.2"
+  resolved "https://registry.yarnpkg.com/postcss-discard-comments/-/postcss-discard-comments-4.0.2.tgz#1fbabd2c246bff6aaad7997b2b0918f4d7af4033"
+  dependencies:
+    postcss "^7.0.0"
+
 postcss-discard-duplicates@^2.0.1:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/postcss-discard-duplicates/-/postcss-discard-duplicates-2.1.0.tgz#b9abf27b88ac188158a5eb12abcae20263b91932"
   dependencies:
     postcss "^5.0.4"
 
+postcss-discard-duplicates@^4.0.2:
+  version "4.0.2"
+  resolved "https://registry.yarnpkg.com/postcss-discard-duplicates/-/postcss-discard-duplicates-4.0.2.tgz#3fe133cd3c82282e550fc9b239176a9207b784eb"
+  dependencies:
+    postcss "^7.0.0"
+
 postcss-discard-empty@^2.0.1:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/postcss-discard-empty/-/postcss-discard-empty-2.1.0.tgz#d2b4bd9d5ced5ebd8dcade7640c7d7cd7f4f92b5"
   dependencies:
     postcss "^5.0.14"
 
+postcss-discard-empty@^4.0.1:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/postcss-discard-empty/-/postcss-discard-empty-4.0.1.tgz#c8c951e9f73ed9428019458444a02ad90bb9f765"
+  dependencies:
+    postcss "^7.0.0"
+
 postcss-discard-overridden@^0.1.1:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/postcss-discard-overridden/-/postcss-discard-overridden-0.1.1.tgz#8b1eaf554f686fb288cd874c55667b0aa3668d58"
   dependencies:
     postcss "^5.0.16"
 
+postcss-discard-overridden@^4.0.1:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/postcss-discard-overridden/-/postcss-discard-overridden-4.0.1.tgz#652aef8a96726f029f5e3e00146ee7a4e755ff57"
+  dependencies:
+    postcss "^7.0.0"
+
 postcss-discard-unused@^2.2.1:
   version "2.2.3"
   resolved "https://registry.yarnpkg.com/postcss-discard-unused/-/postcss-discard-unused-2.2.3.tgz#bce30b2cc591ffc634322b5fb3464b6d934f4433"
@@ -7469,6 +7748,15 @@ postcss-merge-longhand@^2.0.1:
   dependencies:
     postcss "^5.0.4"
 
+postcss-merge-longhand@^4.0.11:
+  version "4.0.11"
+  resolved "https://registry.yarnpkg.com/postcss-merge-longhand/-/postcss-merge-longhand-4.0.11.tgz#62f49a13e4a0ee04e7b98f42bb16062ca2549e24"
+  dependencies:
+    css-color-names "0.0.4"
+    postcss "^7.0.0"
+    postcss-value-parser "^3.0.0"
+    stylehacks "^4.0.0"
+
 postcss-merge-rules@^2.0.3:
   version "2.1.2"
   resolved "https://registry.yarnpkg.com/postcss-merge-rules/-/postcss-merge-rules-2.1.2.tgz#d1df5dfaa7b1acc3be553f0e9e10e87c61b5f721"
@@ -7479,6 +7767,17 @@ postcss-merge-rules@^2.0.3:
     postcss-selector-parser "^2.2.2"
     vendors "^1.0.0"
 
+postcss-merge-rules@^4.0.3:
+  version "4.0.3"
+  resolved "https://registry.yarnpkg.com/postcss-merge-rules/-/postcss-merge-rules-4.0.3.tgz#362bea4ff5a1f98e4075a713c6cb25aefef9a650"
+  dependencies:
+    browserslist "^4.0.0"
+    caniuse-api "^3.0.0"
+    cssnano-util-same-parent "^4.0.0"
+    postcss "^7.0.0"
+    postcss-selector-parser "^3.0.0"
+    vendors "^1.0.0"
+
 postcss-message-helpers@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/postcss-message-helpers/-/postcss-message-helpers-2.0.0.tgz#a4f2f4fab6e4fe002f0aed000478cdf52f9ba60e"
@@ -7491,6 +7790,13 @@ postcss-minify-font-values@^1.0.2:
     postcss "^5.0.4"
     postcss-value-parser "^3.0.2"
 
+postcss-minify-font-values@^4.0.2:
+  version "4.0.2"
+  resolved "https://registry.yarnpkg.com/postcss-minify-font-values/-/postcss-minify-font-values-4.0.2.tgz#cd4c344cce474343fac5d82206ab2cbcb8afd5a6"
+  dependencies:
+    postcss "^7.0.0"
+    postcss-value-parser "^3.0.0"
+
 postcss-minify-gradients@^1.0.1:
   version "1.0.5"
   resolved "https://registry.yarnpkg.com/postcss-minify-gradients/-/postcss-minify-gradients-1.0.5.tgz#5dbda11373703f83cfb4a3ea3881d8d75ff5e6e1"
@@ -7498,6 +7804,15 @@ postcss-minify-gradients@^1.0.1:
     postcss "^5.0.12"
     postcss-value-parser "^3.3.0"
 
+postcss-minify-gradients@^4.0.2:
+  version "4.0.2"
+  resolved "https://registry.yarnpkg.com/postcss-minify-gradients/-/postcss-minify-gradients-4.0.2.tgz#93b29c2ff5099c535eecda56c4aa6e665a663471"
+  dependencies:
+    cssnano-util-get-arguments "^4.0.0"
+    is-color-stop "^1.0.0"
+    postcss "^7.0.0"
+    postcss-value-parser "^3.0.0"
+
 postcss-minify-params@^1.0.4:
   version "1.2.2"
   resolved "https://registry.yarnpkg.com/postcss-minify-params/-/postcss-minify-params-1.2.2.tgz#ad2ce071373b943b3d930a3fa59a358c28d6f1f3"
@@ -7507,6 +7822,17 @@ postcss-minify-params@^1.0.4:
     postcss-value-parser "^3.0.2"
     uniqs "^2.0.0"
 
+postcss-minify-params@^4.0.2:
+  version "4.0.2"
+  resolved "https://registry.yarnpkg.com/postcss-minify-params/-/postcss-minify-params-4.0.2.tgz#6b9cef030c11e35261f95f618c90036d680db874"
+  dependencies:
+    alphanum-sort "^1.0.0"
+    browserslist "^4.0.0"
+    cssnano-util-get-arguments "^4.0.0"
+    postcss "^7.0.0"
+    postcss-value-parser "^3.0.0"
+    uniqs "^2.0.0"
+
 postcss-minify-selectors@^2.0.4:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/postcss-minify-selectors/-/postcss-minify-selectors-2.1.1.tgz#b2c6a98c0072cf91b932d1a496508114311735bf"
@@ -7516,6 +7842,15 @@ postcss-minify-selectors@^2.0.4:
     postcss "^5.0.14"
     postcss-selector-parser "^2.0.0"
 
+postcss-minify-selectors@^4.0.2:
+  version "4.0.2"
+  resolved "https://registry.yarnpkg.com/postcss-minify-selectors/-/postcss-minify-selectors-4.0.2.tgz#e2e5eb40bfee500d0cd9243500f5f8ea4262fbd8"
+  dependencies:
+    alphanum-sort "^1.0.0"
+    has "^1.0.0"
+    postcss "^7.0.0"
+    postcss-selector-parser "^3.0.0"
+
 postcss-modules-extract-imports@^1.2.0:
   version "1.2.1"
   resolved "https://registry.yarnpkg.com/postcss-modules-extract-imports/-/postcss-modules-extract-imports-1.2.1.tgz#dc87e34148ec7eab5f791f7cd5849833375b741a"
@@ -7549,6 +7884,62 @@ postcss-normalize-charset@^1.1.0:
   dependencies:
     postcss "^5.0.5"
 
+postcss-normalize-charset@^4.0.1:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/postcss-normalize-charset/-/postcss-normalize-charset-4.0.1.tgz#8b35add3aee83a136b0471e0d59be58a50285dd4"
+  dependencies:
+    postcss "^7.0.0"
+
+postcss-normalize-display-values@^4.0.2:
+  version "4.0.2"
+  resolved "https://registry.yarnpkg.com/postcss-normalize-display-values/-/postcss-normalize-display-values-4.0.2.tgz#0dbe04a4ce9063d4667ed2be476bb830c825935a"
+  dependencies:
+    cssnano-util-get-match "^4.0.0"
+    postcss "^7.0.0"
+    postcss-value-parser "^3.0.0"
+
+postcss-normalize-positions@^4.0.2:
+  version "4.0.2"
+  resolved "https://registry.yarnpkg.com/postcss-normalize-positions/-/postcss-normalize-positions-4.0.2.tgz#05f757f84f260437378368a91f8932d4b102917f"
+  dependencies:
+    cssnano-util-get-arguments "^4.0.0"
+    has "^1.0.0"
+    postcss "^7.0.0"
+    postcss-value-parser "^3.0.0"
+
+postcss-normalize-repeat-style@^4.0.2:
+  version "4.0.2"
+  resolved "https://registry.yarnpkg.com/postcss-normalize-repeat-style/-/postcss-normalize-repeat-style-4.0.2.tgz#c4ebbc289f3991a028d44751cbdd11918b17910c"
+  dependencies:
+    cssnano-util-get-arguments "^4.0.0"
+    cssnano-util-get-match "^4.0.0"
+    postcss "^7.0.0"
+    postcss-value-parser "^3.0.0"
+
+postcss-normalize-string@^4.0.2:
+  version "4.0.2"
+  resolved "https://registry.yarnpkg.com/postcss-normalize-string/-/postcss-normalize-string-4.0.2.tgz#cd44c40ab07a0c7a36dc5e99aace1eca4ec2690c"
+  dependencies:
+    has "^1.0.0"
+    postcss "^7.0.0"
+    postcss-value-parser "^3.0.0"
+
+postcss-normalize-timing-functions@^4.0.2:
+  version "4.0.2"
+  resolved "https://registry.yarnpkg.com/postcss-normalize-timing-functions/-/postcss-normalize-timing-functions-4.0.2.tgz#8e009ca2a3949cdaf8ad23e6b6ab99cb5e7d28d9"
+  dependencies:
+    cssnano-util-get-match "^4.0.0"
+    postcss "^7.0.0"
+    postcss-value-parser "^3.0.0"
+
+postcss-normalize-unicode@^4.0.1:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/postcss-normalize-unicode/-/postcss-normalize-unicode-4.0.1.tgz#841bd48fdcf3019ad4baa7493a3d363b52ae1cfb"
+  dependencies:
+    browserslist "^4.0.0"
+    postcss "^7.0.0"
+    postcss-value-parser "^3.0.0"
+
 postcss-normalize-url@^3.0.7:
   version "3.0.8"
   resolved "https://registry.yarnpkg.com/postcss-normalize-url/-/postcss-normalize-url-3.0.8.tgz#108f74b3f2fcdaf891a2ffa3ea4592279fc78222"
@@ -7558,6 +7949,22 @@ postcss-normalize-url@^3.0.7:
     postcss "^5.0.14"
     postcss-value-parser "^3.2.3"
 
+postcss-normalize-url@^4.0.1:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/postcss-normalize-url/-/postcss-normalize-url-4.0.1.tgz#10e437f86bc7c7e58f7b9652ed878daaa95faae1"
+  dependencies:
+    is-absolute-url "^2.0.0"
+    normalize-url "^3.0.0"
+    postcss "^7.0.0"
+    postcss-value-parser "^3.0.0"
+
+postcss-normalize-whitespace@^4.0.2:
+  version "4.0.2"
+  resolved "https://registry.yarnpkg.com/postcss-normalize-whitespace/-/postcss-normalize-whitespace-4.0.2.tgz#bf1d4070fe4fcea87d1348e825d8cc0c5faa7d82"
+  dependencies:
+    postcss "^7.0.0"
+    postcss-value-parser "^3.0.0"
+
 postcss-ordered-values@^2.1.0:
   version "2.2.3"
   resolved "https://registry.yarnpkg.com/postcss-ordered-values/-/postcss-ordered-values-2.2.3.tgz#eec6c2a67b6c412a8db2042e77fe8da43f95c11d"
@@ -7565,6 +7972,14 @@ postcss-ordered-values@^2.1.0:
     postcss "^5.0.4"
     postcss-value-parser "^3.0.1"
 
+postcss-ordered-values@^4.1.2:
+  version "4.1.2"
+  resolved "https://registry.yarnpkg.com/postcss-ordered-values/-/postcss-ordered-values-4.1.2.tgz#0cf75c820ec7d5c4d280189559e0b571ebac0eee"
+  dependencies:
+    cssnano-util-get-arguments "^4.0.0"
+    postcss "^7.0.0"
+    postcss-value-parser "^3.0.0"
+
 postcss-reduce-idents@^2.2.2:
   version "2.4.0"
   resolved "https://registry.yarnpkg.com/postcss-reduce-idents/-/postcss-reduce-idents-2.4.0.tgz#c2c6d20cc958284f6abfbe63f7609bf409059ad3"
@@ -7578,6 +7993,15 @@ postcss-reduce-initial@^1.0.0:
   dependencies:
     postcss "^5.0.4"
 
+postcss-reduce-initial@^4.0.3:
+  version "4.0.3"
+  resolved "https://registry.yarnpkg.com/postcss-reduce-initial/-/postcss-reduce-initial-4.0.3.tgz#7fd42ebea5e9c814609639e2c2e84ae270ba48df"
+  dependencies:
+    browserslist "^4.0.0"
+    caniuse-api "^3.0.0"
+    has "^1.0.0"
+    postcss "^7.0.0"
+
 postcss-reduce-transforms@^1.0.3:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/postcss-reduce-transforms/-/postcss-reduce-transforms-1.0.4.tgz#ff76f4d8212437b31c298a42d2e1444025771ae1"
@@ -7586,6 +8010,21 @@ postcss-reduce-transforms@^1.0.3:
     postcss "^5.0.8"
     postcss-value-parser "^3.0.1"
 
+postcss-reduce-transforms@^4.0.2:
+  version "4.0.2"
+  resolved "https://registry.yarnpkg.com/postcss-reduce-transforms/-/postcss-reduce-transforms-4.0.2.tgz#17efa405eacc6e07be3414a5ca2d1074681d4e29"
+  dependencies:
+    cssnano-util-get-match "^4.0.0"
+    has "^1.0.0"
+    postcss "^7.0.0"
+    postcss-value-parser "^3.0.0"
+
+postcss-safe-parser@^4.0.1:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/postcss-safe-parser/-/postcss-safe-parser-4.0.1.tgz#8756d9e4c36fdce2c72b091bbc8ca176ab1fcdea"
+  dependencies:
+    postcss "^7.0.0"
+
 postcss-selector-parser@^2.0.0, postcss-selector-parser@^2.2.2:
   version "2.2.3"
   resolved "https://registry.yarnpkg.com/postcss-selector-parser/-/postcss-selector-parser-2.2.3.tgz#f9437788606c3c9acee16ffe8d8b16297f27bb90"
@@ -7594,7 +8033,15 @@ postcss-selector-parser@^2.0.0, postcss-selector-parser@^2.2.2:
     indexes-of "^1.0.1"
     uniq "^1.0.1"
 
-postcss-selector-parser@^5.0.0:
+postcss-selector-parser@^3.0.0:
+  version "3.1.1"
+  resolved "https://registry.yarnpkg.com/postcss-selector-parser/-/postcss-selector-parser-3.1.1.tgz#4f875f4afb0c96573d5cf4d74011aee250a7e865"
+  dependencies:
+    dot-prop "^4.1.1"
+    indexes-of "^1.0.1"
+    uniq "^1.0.1"
+
+postcss-selector-parser@^5.0.0, postcss-selector-parser@^5.0.0-rc.4:
   version "5.0.0"
   resolved "https://registry.yarnpkg.com/postcss-selector-parser/-/postcss-selector-parser-5.0.0.tgz#249044356697b33b64f1a8f7c80922dddee7195c"
   dependencies:
@@ -7611,6 +8058,15 @@ postcss-svgo@^2.1.1:
     postcss-value-parser "^3.2.3"
     svgo "^0.7.0"
 
+postcss-svgo@^4.0.2:
+  version "4.0.2"
+  resolved "https://registry.yarnpkg.com/postcss-svgo/-/postcss-svgo-4.0.2.tgz#17b997bc711b333bab143aaed3b8d3d6e3d38258"
+  dependencies:
+    is-svg "^3.0.0"
+    postcss "^7.0.0"
+    postcss-value-parser "^3.0.0"
+    svgo "^1.0.0"
+
 postcss-unique-selectors@^2.0.2:
   version "2.0.2"
   resolved "https://registry.yarnpkg.com/postcss-unique-selectors/-/postcss-unique-selectors-2.0.2.tgz#981d57d29ddcb33e7b1dfe1fd43b8649f933ca1d"
@@ -7619,7 +8075,15 @@ postcss-unique-selectors@^2.0.2:
     postcss "^5.0.4"
     uniqs "^2.0.0"
 
-postcss-value-parser@^3.0.1, postcss-value-parser@^3.0.2, postcss-value-parser@^3.1.1, postcss-value-parser@^3.1.2, postcss-value-parser@^3.2.3, postcss-value-parser@^3.3.0:
+postcss-unique-selectors@^4.0.1:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/postcss-unique-selectors/-/postcss-unique-selectors-4.0.1.tgz#9446911f3289bfd64c6d680f073c03b1f9ee4bac"
+  dependencies:
+    alphanum-sort "^1.0.0"
+    postcss "^7.0.0"
+    uniqs "^2.0.0"
+
+postcss-value-parser@^3.0.0, postcss-value-parser@^3.0.1, postcss-value-parser@^3.0.2, postcss-value-parser@^3.1.1, postcss-value-parser@^3.1.2, postcss-value-parser@^3.2.3, postcss-value-parser@^3.3.0, postcss-value-parser@^3.3.1:
   version "3.3.1"
   resolved "https://registry.yarnpkg.com/postcss-value-parser/-/postcss-value-parser-3.3.1.tgz#9ff822547e2893213cf1c30efa51ac5fd1ba8281"
 
@@ -7648,7 +8112,7 @@ postcss@^6.0.0, postcss@^6.0.1, postcss@^6.0.17:
     source-map "^0.6.1"
     supports-color "^5.4.0"
 
-postcss@^7.0.14:
+postcss@^7.0.0, postcss@^7.0.1, postcss@^7.0.14, postcss@^7.0.5:
   version "7.0.14"
   resolved "https://registry.yarnpkg.com/postcss/-/postcss-7.0.14.tgz#4527ed6b1ca0d82c53ce5ec1a2041c2346bbd6e5"
   dependencies:
@@ -8276,6 +8740,14 @@ retry@^0.10.0:
   version "0.10.1"
   resolved "https://registry.yarnpkg.com/retry/-/retry-0.10.1.tgz#e76388d217992c252750241d3d3956fed98d8ff4"
 
+rgb-regex@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/rgb-regex/-/rgb-regex-1.0.1.tgz#c0e0d6882df0e23be254a475e8edd41915feaeb1"
+
+rgba-regex@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/rgba-regex/-/rgba-regex-1.0.0.tgz#43374e2e2ca0968b0ef1523460b7d730ff22eeb3"
+
 rimraf@2, rimraf@^2.2.8, rimraf@^2.5.4, rimraf@^2.6.1, rimraf@^2.6.2, rimraf@~2.6.2:
   version "2.6.3"
   resolved "https://registry.yarnpkg.com/rimraf/-/rimraf-2.6.3.tgz#b2d104fe0d8fb27cf9e0a1cda8262dd3833c6cab"
@@ -8355,7 +8827,7 @@ sax@0.5.x:
   version "0.5.8"
   resolved "https://registry.yarnpkg.com/sax/-/sax-0.5.8.tgz#d472db228eb331c2506b0e8c15524adb939d12c1"
 
-sax@^1.2.4, sax@~1.2.1:
+sax@^1.2.4, sax@~1.2.1, sax@~1.2.4:
   version "1.2.4"
   resolved "https://registry.yarnpkg.com/sax/-/sax-1.2.4.tgz#2816234e2378bddc4e5354fab5caa895df7100d9"
 
@@ -8509,6 +8981,12 @@ signal-exit@^3.0.0, 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"
+
 sisteransi@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/sisteransi/-/sisteransi-1.0.0.tgz#77d9622ff909080f1c19e5f4a1df0c1b0a27b88c"
@@ -8744,6 +9222,10 @@ ssri@^6.0.0, ssri@^6.0.1:
   dependencies:
     figgy-pudding "^3.5.1"
 
+stable@^0.1.8:
+  version "0.1.8"
+  resolved "https://registry.yarnpkg.com/stable/-/stable-0.1.8.tgz#836eb3c8382fe2936feaf544631017ce7d47a3cf"
+
 stack-utils@^1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/stack-utils/-/stack-utils-1.0.2.tgz#33eba3897788558bebfc2db059dc158ec36cebb8"
@@ -8920,6 +9402,14 @@ strong-log-transformer@^2.0.0:
     minimist "^1.2.0"
     through "^2.3.4"
 
+stylehacks@^4.0.0:
+  version "4.0.3"
+  resolved "https://registry.yarnpkg.com/stylehacks/-/stylehacks-4.0.3.tgz#6718fcaf4d1e07d8a1318690881e8d96726a71d5"
+  dependencies:
+    browserslist "^4.0.0"
+    postcss "^7.0.0"
+    postcss-selector-parser "^3.0.0"
+
 stylus-loader@^3.0.2:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/stylus-loader/-/stylus-loader-3.0.2.tgz#27a706420b05a38e038e7cacb153578d450513c6"
@@ -8977,6 +9467,25 @@ svgo@^0.7.0:
     sax "~1.2.1"
     whet.extend "~0.9.9"
 
+svgo@^1.0.0:
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/svgo/-/svgo-1.2.1.tgz#3fedde75a4016193e1c2608b5fdef6f3e4a9fd99"
+  dependencies:
+    chalk "^2.4.1"
+    coa "^2.0.2"
+    css-select "^2.0.0"
+    css-select-base-adapter "^0.1.1"
+    css-tree "1.0.0-alpha.28"
+    css-url-regex "^1.1.0"
+    csso "^3.5.1"
+    js-yaml "^3.13.0"
+    mkdirp "~0.5.1"
+    object.values "^1.1.0"
+    sax "~1.2.4"
+    stable "^0.1.8"
+    unquote "~1.1.1"
+    util.promisify "~1.0.0"
+
 symbol-observable@^1.1.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/symbol-observable/-/symbol-observable-1.2.0.tgz#c22688aed4eab3cdc2dfeacbb561660560a00804"
@@ -9116,6 +9625,10 @@ timers-browserify@^2.0.4:
   dependencies:
     setimmediate "^1.0.4"
 
+timsort@^0.3.0:
+  version "0.3.0"
+  resolved "https://registry.yarnpkg.com/timsort/-/timsort-0.3.0.tgz#405411a8e7e6339fe64db9a234de11dc31e02bd4"
+
 tiny-emitter@^2.0.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/tiny-emitter/-/tiny-emitter-2.1.0.tgz#1d1a56edfc51c43e863cbb5382a72330e3555423"
@@ -9348,6 +9861,10 @@ unpipe@1.0.0, unpipe@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/unpipe/-/unpipe-1.0.0.tgz#b2bf4ee8514aae6165b4817829d21b2ef49904ec"
 
+unquote@~1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/unquote/-/unquote-1.1.1.tgz#8fded7324ec6e88a0ff8b905e7c098cdc086d544"
+
 unset-value@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/unset-value/-/unset-value-1.0.0.tgz#8376873f7d2335179ffb1e6fc3a8ed0dfc8ab559"
@@ -9407,7 +9924,7 @@ util-deprecate@^1.0.1, util-deprecate@~1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/util-deprecate/-/util-deprecate-1.0.2.tgz#450d4dc9fa70de732762fbd2d4a28981419a0ccf"
 
-util.promisify@1.0.0, util.promisify@^1.0.0:
+util.promisify@1.0.0, util.promisify@^1.0.0, util.promisify@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/util.promisify/-/util.promisify-1.0.0.tgz#440f7165a459c9a16dc145eb8e72f35687097030"
   dependencies:
@@ -9568,6 +10085,12 @@ vuepress-html-webpack-plugin@^3.2.0:
     toposort "^1.0.0"
     util.promisify "1.0.0"
 
+vuepress-plugin-container@^2.0.0:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/vuepress-plugin-container/-/vuepress-plugin-container-2.0.1.tgz#b20ef97dd91f137c8be119460927c5ffd64e0f77"
+  dependencies:
+    markdown-it-container "^2.0.0"
+
 vuepress-plugin-flowchart@^1.4.2:
   version "1.4.3"
   resolved "https://registry.yarnpkg.com/vuepress-plugin-flowchart/-/vuepress-plugin-flowchart-1.4.3.tgz#1692807257c9ba02f764ced0caf930c627f65bdb"