diff --git a/build/rollup/build-component.rollup.js b/build/rollup/build-component.rollup.js
index 5065a5af1..8bec3f1d9 100644
--- a/build/rollup/build-component.rollup.js
+++ b/build/rollup/build-component.rollup.js
@@ -8,6 +8,8 @@ const stylus = require('stylus')
 const babel = bluebird.promisifyAll(require('babel-core'))
 const TARGET_LIB_BASE = 'lib'
 const SRC_BASE = 'components'
+const postcss = require('postcss')
+const autoprefixer = require('autoprefixer')
 
 function babelPluginInsertCssImportForVue ({ types: t }) {
   function computedSameDirCssPosition(filePath) {
@@ -30,16 +32,18 @@ function compileVueStylus (content, cb, compiler, filePath) {
   stylus(content)
     .set('filename', filePath)
     .define('url', stylus.url())
-    // .include(path.join(__dirname, 'src/*'))
     .import(path.join(__dirname, '../../components/_style/mixin/*.styl'))
     .import(path.join(__dirname, '../../node_modules/nib/lib/nib/vendor'))
     .import(path.join(__dirname, '../../node_modules/nib/lib/nib/gradients'))
-    .import(path.join(__dirname, '../../node_modules/nib/lib/nib/flex'))
     .render((err, css) => {
       if (err) {
         throw err
       }
-      cb(null, css)
+      postcss([autoprefixer])
+        .process(css)
+        .then(result => {
+          cb(null, result.css)
+        })
     })
 }
 
diff --git a/build/stylus-mixin.js b/build/stylus-mixin.js
index 689392de6..cebc95523 100644
--- a/build/stylus-mixin.js
+++ b/build/stylus-mixin.js
@@ -4,5 +4,4 @@ module.exports = function useMixin(style) {
     .import(path.join(__dirname, '../components/_style/mixin/*.styl'))
     .import(path.join(__dirname, '../node_modules/nib/lib/nib/vendor'))
     .import(path.join(__dirname, '../node_modules/nib/lib/nib/gradients'))
-    .import(path.join(__dirname, '../node_modules/nib/lib/nib/flex'))
 }
\ No newline at end of file
diff --git a/package.json b/package.json
index 514682380..6a819380d 100644
--- a/package.json
+++ b/package.json
@@ -66,7 +66,7 @@
     "@types/prettier": "^1.8.0",
     "@types/vue": "^2.0.0",
     "aesir-cli": "^0.0.5",
-    "autoprefixer": "^7.1.2",
+    "autoprefixer": "^8.4.1",
     "avoriaz": "^6.0.1",
     "babel-core": "^6.22.1",
     "babel-eslint": "^7.1.1",
@@ -218,8 +218,7 @@
     "npm": ">= 5.0.0"
   },
   "browserslist": [
-    "> 1%",
-    "last 2 versions",
-    "not ie <= 8"
+    "iOS >= 8",
+    "Android > 4.0"
   ]
 }
diff --git a/postcss.config.js b/postcss.config.js
index 790308bc7..3fa448cfa 100644
--- a/postcss.config.js
+++ b/postcss.config.js
@@ -1,11 +1,12 @@
 
 // https://github.com/michael-ciniawsky/postcss-load-config
-
+const browserslist = require('./package.json').browserslist
 module.exports = (ctx) => ({
   plugins: {
     'postcss-pxtorem': ctx.env !== 'production' ? { rootValue: 100, propWhiteList: [] } : false,
     'postcss-url': {url: 'inline'},
     'cssnano': { zindex: false, mergeIdents: false, discardUnused: false, autoprefixer: false, reduceIdents: false
     },
+    'autoprefixer': { browsers: browserslist }
   }
 })
diff --git a/site/docs/theme.md b/site/docs/theme.md
index 91d77dcb0..51112593d 100644
--- a/site/docs/theme.md
+++ b/site/docs/theme.md
@@ -43,7 +43,6 @@ npm install --save-dev babel-plugin-import stylus stylus-loader css-loader
 // 建议安装并引入css拓展nib
 @import '~nib/lib/nib/vendor'
 @import '~nib/lib/nib/gradients'
-@import '~nib/lib/nib/flex'
 
 // 覆盖样式变量
 color-primary = #1AAD19