diff --git a/build/webpack.doc.dev.js b/build/webpack.doc.dev.js
index 9b39aa3e..2b51af48 100644
--- a/build/webpack.doc.dev.js
+++ b/build/webpack.doc.dev.js
@@ -20,6 +20,7 @@ module.exports = {
   },
   serve: {
     open: true,
+    host: '0.0.0.0',
     devMiddleware: {
       logLevel: 'warn'
     },
diff --git a/packages/tab/README.md b/packages/tab/README.md
index f60f5227..47671def 100644
--- a/packages/tab/README.md
+++ b/packages/tab/README.md
@@ -117,7 +117,7 @@ Page({
 |-----------|-----------|-----------|-------------|
 | active | 当前激活标签的索引 | `Number` | `0` |
 | color | 标签颜色 | `String` | `#f44` |
-| z-index | z-index 层级 | `Number` | 99 |
+| z-index | z-index 层级 | `Number` | `1` |
 | type | 样式风格，可选值为`card` | `String` | `line` |
 | border | 是否展示外边框，仅在`line`风格下生效 | `Boolean` | `true` |
 | duration | 动画时间 (单位秒)  | `Number` | `0.2` |
diff --git a/packages/tabs/index.ts b/packages/tabs/index.ts
index ad0ea848..394d6ed8 100644
--- a/packages/tabs/index.ts
+++ b/packages/tabs/index.ts
@@ -47,7 +47,7 @@ VantComponent({
     },
     zIndex: {
       type: Number,
-      value: 99
+      value: 1
     },
     swipeThreshold: {
       type: Number,