fix bugs

postcss.config.js

@@ -0,0 +1,13 @@
+const path = require('path')
+module.exports = {
+  parser: require('postcss-comment'),
+  plugins: [
+    require('autoprefixer')({
+      overrideBrowserslist: [
+        'Android >= 4',
+        'ios >= 8'
+      ]
+    }),
+    require('@dcloudio/vue-cli-plugin-uni/packages/postcss')
+  ]
+}