diff --git a/packages/cascader/demo/index.ts b/packages/cascader/demo/index.ts
index f82cfe2b..409ba2f7 100644
--- a/packages/cascader/demo/index.ts
+++ b/packages/cascader/demo/index.ts
@@ -1,5 +1,28 @@
 import { VantComponent } from '../../common/component';
-import { deepClone } from '../../common/utils';
+import { isDef } from '../../common/utils';
+import { isObj } from '../../common/validator';
+
+function deepClone<T extends Record<string, any>>(obj: T): T {
+  if (!isDef(obj)) {
+    return obj;
+  }
+
+  if (Array.isArray(obj)) {
+    return obj.map((item) => deepClone(item)) as unknown as T;
+  }
+
+  if (isObj(obj)) {
+    const to = {} as Record<string, any>;
+    Object.keys(obj).forEach((key: string) => {
+      // @ts-ignore
+      to[key] = deepClone(obj[key]);
+    });
+
+    return to as T;
+  }
+
+  return obj;
+}
 
 const zhCNOptions = [
   {
diff --git a/packages/cascader/index.less b/packages/cascader/index.less
index eeabef83..056358f2 100644
--- a/packages/cascader/index.less
+++ b/packages/cascader/index.less
@@ -68,10 +68,6 @@
     }
   }
 
-  &__selected-icon {
-    font-size: @cascader-selected-icon-size !important;
-  }
-
   &__options {
     box-sizing: border-box;
     height: @cascader-options-height;
diff --git a/packages/cascader/index.wxml b/packages/cascader/index.wxml
index 45c1c42d..b1d724b9 100644
--- a/packages/cascader/index.wxml
+++ b/packages/cascader/index.wxml
@@ -44,7 +44,7 @@
         bind:tap="onSelect"
       >
         <text>{{ option[textKey] }}</text>
-        <van-icon wx:if="{{ utils.isSelected(tab, textKey, option) }}" name="success" custom-class="van-cascader__selected-icon" />
+        <van-icon wx:if="{{ utils.isSelected(tab, textKey, option) }}" name="success" size="18" />
       </view>
     </view>
     <!-- 暂不支持 -->
diff --git a/packages/common/utils.ts b/packages/common/utils.ts
index 57d84dab..8904a0ec 100644
--- a/packages/common/utils.ts
+++ b/packages/common/utils.ts
@@ -1,4 +1,4 @@
-import { isDef, isNumber, isPlainObject, isPromise, isObj } from './validator';
+import { isDef, isNumber, isPlainObject, isPromise } from './validator';
 import {
   canIUseGroupSetData,
   canIUseNextTick,
@@ -116,27 +116,3 @@ export function getCurrentPage<T>() {
   const pages = getCurrentPages();
   return pages[pages.length - 1] as T & WechatMiniprogram.Page.TrivialInstance;
 }
-
-export function deepClone<T extends Record<string, any> | null | undefined>(
-  obj: T
-): T {
-  if (!isDef(obj)) {
-    return obj;
-  }
-
-  if (Array.isArray(obj)) {
-    return obj.map((item) => deepClone(item)) as unknown as T;
-  }
-
-  if (isObj(obj)) {
-    const to = {} as Record<string, any>;
-    Object.keys(obj).forEach((key: string) => {
-      // @ts-ignore
-      to[key] = deepClone(obj[key]);
-    });
-
-    return to as T;
-  }
-
-  return obj;
-}
diff --git a/packages/empty/test/__snapshots__/demo.spec.ts.snap b/packages/empty/test/__snapshots__/demo.spec.ts.snap
index 077923f1..0cc8524e 100644
--- a/packages/empty/test/__snapshots__/demo.spec.ts.snap
+++ b/packages/empty/test/__snapshots__/demo.spec.ts.snap
@@ -70,7 +70,7 @@ exports[`should render demo and match snapshot 1`] = `
                 style="z-index:1"
               >
                 <wx-view
-                  class="wrap-class van-tabs__wrap "
+                  class="van-tabs__wrap  wrap-class"
                 >
                   <wx-scroll-view
                     class="van-tabs__scroll van-tabs__scroll--line"
diff --git a/packages/icon/test/__snapshots__/demo.spec.ts.snap b/packages/icon/test/__snapshots__/demo.spec.ts.snap
index a1cf4c94..dee7d18b 100644
--- a/packages/icon/test/__snapshots__/demo.spec.ts.snap
+++ b/packages/icon/test/__snapshots__/demo.spec.ts.snap
@@ -20,7 +20,7 @@ exports[`should render demo and match snapshot 1`] = `
             style="z-index:1"
           >
             <wx-view
-              class="wrap-class van-tabs__wrap "
+              class="van-tabs__wrap  wrap-class"
             >
               <wx-scroll-view
                 class="van-tabs__scroll van-tabs__scroll--line"
diff --git a/packages/index-bar/test/__snapshots__/demo.spec.ts.snap b/packages/index-bar/test/__snapshots__/demo.spec.ts.snap
index 2bb33511..fa492261 100644
--- a/packages/index-bar/test/__snapshots__/demo.spec.ts.snap
+++ b/packages/index-bar/test/__snapshots__/demo.spec.ts.snap
@@ -20,7 +20,7 @@ exports[`should render demo and match snapshot 1`] = `
             style="z-index:1"
           >
             <wx-view
-              class="wrap-class van-tabs__wrap "
+              class="van-tabs__wrap  wrap-class"
             >
               <wx-scroll-view
                 class="van-tabs__scroll van-tabs__scroll--line"
diff --git a/packages/tab/README.md b/packages/tab/README.md
index f6e996cc..be6b12ce 100644
--- a/packages/tab/README.md
+++ b/packages/tab/README.md
@@ -250,6 +250,7 @@ Page({
 | nav-class        | 标签栏样式类     |
 | tab-class        | 标签样式类       |
 | tab-active-class | 标签激活态样式类 |
+| wrap-class       | 标签栏根节点样式类 |
 
 ### 方法
 
diff --git a/packages/tab/test/__snapshots__/demo.spec.ts.snap b/packages/tab/test/__snapshots__/demo.spec.ts.snap
index 2d3ecfd7..d4fda650 100644
--- a/packages/tab/test/__snapshots__/demo.spec.ts.snap
+++ b/packages/tab/test/__snapshots__/demo.spec.ts.snap
@@ -29,7 +29,7 @@ exports[`should render demo and match snapshot 1`] = `
                 style="z-index:1"
               >
                 <wx-view
-                  class="wrap-class van-tabs__wrap "
+                  class="van-tabs__wrap  wrap-class"
                 >
                   <wx-scroll-view
                     class="van-tabs__scroll van-tabs__scroll--line"
@@ -186,7 +186,7 @@ exports[`should render demo and match snapshot 1`] = `
                 style="z-index:1"
               >
                 <wx-view
-                  class="wrap-class van-tabs__wrap "
+                  class="van-tabs__wrap  wrap-class"
                 >
                   <wx-scroll-view
                     class="van-tabs__scroll van-tabs__scroll--line"
@@ -322,7 +322,7 @@ exports[`should render demo and match snapshot 1`] = `
                 style="z-index:1"
               >
                 <wx-view
-                  class="wrap-class van-tabs__wrap van-tabs__wrap--scrollable "
+                  class="van-tabs__wrap van-tabs__wrap--scrollable  wrap-class"
                 >
                   <wx-scroll-view
                     class="van-tabs__scroll van-tabs__scroll--line"
@@ -523,7 +523,7 @@ exports[`should render demo and match snapshot 1`] = `
                 style="z-index:1"
               >
                 <wx-view
-                  class="wrap-class van-tabs__wrap "
+                  class="van-tabs__wrap  wrap-class"
                 >
                   <wx-scroll-view
                     class="van-tabs__scroll van-tabs__scroll--line"
@@ -661,7 +661,7 @@ exports[`should render demo and match snapshot 1`] = `
                 style="z-index:1"
               >
                 <wx-view
-                  class="wrap-class van-tabs__wrap "
+                  class="van-tabs__wrap  wrap-class"
                 >
                   <wx-scroll-view
                     class="van-tabs__scroll van-tabs__scroll--card"
@@ -795,7 +795,7 @@ exports[`should render demo and match snapshot 1`] = `
                 style="z-index:1"
               >
                 <wx-view
-                  class="wrap-class van-tabs__wrap "
+                  class="van-tabs__wrap  wrap-class"
                 >
                   <wx-scroll-view
                     class="van-tabs__scroll van-tabs__scroll--line"
@@ -910,7 +910,7 @@ exports[`should render demo and match snapshot 1`] = `
                 style="z-index:1"
               >
                 <wx-view
-                  class="wrap-class van-tabs__wrap "
+                  class="van-tabs__wrap  wrap-class"
                 >
                   <wx-scroll-view
                     class="van-tabs__scroll van-tabs__scroll--line"
@@ -1067,7 +1067,7 @@ exports[`should render demo and match snapshot 1`] = `
                 style="z-index:1"
               >
                 <wx-view
-                  class="wrap-class van-tabs__wrap "
+                  class="van-tabs__wrap  wrap-class"
                 >
                   <wx-scroll-view
                     class="van-tabs__scroll van-tabs__scroll--line"
@@ -1224,7 +1224,7 @@ exports[`should render demo and match snapshot 1`] = `
                 style="z-index:1"
               >
                 <wx-view
-                  class="wrap-class van-tabs__wrap "
+                  class="van-tabs__wrap  wrap-class"
                 >
                   <wx-scroll-view
                     class="van-tabs__scroll van-tabs__scroll--line"
@@ -1385,7 +1385,7 @@ exports[`should render demo and match snapshot 1`] = `
                 style="z-index:1"
               >
                 <wx-view
-                  class="wrap-class van-tabs__wrap "
+                  class="van-tabs__wrap  wrap-class"
                 >
                   <wx-scroll-view
                     class="van-tabs__scroll van-tabs__scroll--line"
diff --git a/packages/tabs/index.wxml b/packages/tabs/index.wxml
index bbde40d3..f0a01bb8 100644
--- a/packages/tabs/index.wxml
+++ b/packages/tabs/index.wxml
@@ -9,7 +9,7 @@
     container="{{ container }}"
     bind:scroll="onTouchScroll"
   >
-    <view class="wrap-class {{ utils.bem('tabs__wrap', { scrollable }) }} {{ type === 'line' && border ? 'van-hairline--top-bottom' : '' }}">
+    <view class="{{ utils.bem('tabs__wrap', { scrollable }) }} {{ type === 'line' && border ? 'van-hairline--top-bottom' : '' }} wrap-class">
       <slot name="nav-left" />
 
       <scroll-view