diff --git a/.stylelintignore b/.stylelintignore
index 6b1de4c8e..3e39fd87e 100644
--- a/.stylelintignore
+++ b/.stylelintignore
@@ -1,5 +1,5 @@
 source/assets/css/core/base.less
 *.js
 *.tsx
-components/style/color/*
+source/assets/css/color/*
 
diff --git a/source/assets/css/core/index.less b/source/assets/css/core/index.less
index 7ce05eaab..6f0509f23 100644
--- a/source/assets/css/core/index.less
+++ b/source/assets/css/core/index.less
@@ -8,13 +8,14 @@
 .fishd-motion-collapse-legacy {
   overflow: hidden;
   &-active {
-    transition: height @animation-duration-base @ease-in-out,
-      opacity @animation-duration-base @ease-in-out !important;
+        transition: height @animation-duration-base @ease-in-out,
+          opacity @animation-duration-base @ease-in-out !important;
   }
 }
 
 .fishd-motion-collapse {
   overflow: hidden;
-  transition: height @animation-duration-base @ease-in-out,
+  transition:
+ height @animation-duration-base @ease-in-out,
     opacity @animation-duration-base @ease-in-out !important;
 }
diff --git a/source/components/InputNumber/style/index.less b/source/components/InputNumber/style/index.less
index e364db774..4e8756eae 100755
--- a/source/components/InputNumber/style/index.less
+++ b/source/components/InputNumber/style/index.less
@@ -19,7 +19,7 @@
     &-wrapper {
       display: inline-block;
       text-align: start;
-      vertical-align: top; 
+      vertical-align: top;
     }
   }
 
diff --git a/source/components/Layout/index.tsx b/source/components/Layout/index.tsx
index 955c9799b..e8d6ca4e6 100644
--- a/source/components/Layout/index.tsx
+++ b/source/components/Layout/index.tsx
@@ -2,7 +2,8 @@ import InternalLayout, { BasicProps, Content, Footer, Header } from './Layout';
 import Sider from './Sider';
 import './style/index.less';
 
-export { BasicProps as LayoutProps } from './layout';
+export type LayoutProps = BasicProps;
+
 export { SiderProps } from './Sider';
 
 interface LayoutType extends React.FC<BasicProps> {
diff --git a/source/components/Menu/__tests__/index.test.tsx b/source/components/Menu/__tests__/index.test.tsx
index 9dc2673c5..f8e5abf8a 100644
--- a/source/components/Menu/__tests__/index.test.tsx
+++ b/source/components/Menu/__tests__/index.test.tsx
@@ -50,7 +50,7 @@ const expectSubMenuBehavior = (menu, enter = noop, leave = noop) => {
     if (getSubMenu().length) {
       expect(
         getSubMenu().hasClass('fishd-menu-submenu-hidden') ||
-        getSubMenu().hasClass('fishd-menu-hidden') ||
+          getSubMenu().hasClass('fishd-menu-hidden') ||
           getSubMenu().hasClass(AnimationClassNames[mode]),
       ).toBeTruthy();
     }
@@ -61,11 +61,11 @@ describe('Menu', () => {
   window.requestAnimationFrame = callback => window.setTimeout(callback, 16);
   window.cancelAnimationFrame = window.clearTimeout;
 
-  beforeAll(() => {
+  beforeEach(() => {
     jest.useFakeTimers();
   });
 
-  afterAll(() => {
+  afterEach(() => {
     jest.useRealTimers();
   });
 
@@ -420,6 +420,14 @@ describe('Menu', () => {
   });
 
   describe('open submenu when click submenu title', () => {
+    beforeEach(() => {
+      jest.useFakeTimers();
+    });
+
+    afterEach(() => {
+      jest.useRealTimers();
+    });
+
     const toggleMenu = (wrapper, index, event) => {
       wrapper.find('.fishd-menu-submenu-title').at(index).simulate(event);
       jest.runAllTimers();
diff --git a/source/components/Menu/style/index.less b/source/components/Menu/style/index.less
index 4d3a2edf7..25dc14a02 100755
--- a/source/components/Menu/style/index.less
+++ b/source/components/Menu/style/index.less
@@ -40,7 +40,8 @@
   background: @menu-bg;
   outline: none;
   box-shadow: @box-shadow-base;
-  transition: background @animation-duration-slow,
+  transition:
+ background @animation-duration-slow,
     width @animation-duration-slow cubic-bezier(0.2, 0, 0, 1) 0s;
   .clearfix();
 
@@ -84,12 +85,14 @@
   }
 
   &-horizontal &-submenu {
-    transition: border-color @animation-duration-slow @ease-in-out,
+    transition:
+ border-color @animation-duration-slow @ease-in-out,
       background @animation-duration-slow @ease-in-out;
   }
   &-submenu,
   &-submenu-inline {
-    transition: border-color @animation-duration-slow @ease-in-out,
+    transition:
+ border-color @animation-duration-slow @ease-in-out,
       background @animation-duration-slow @ease-in-out,
       padding @menu-animation-duration-normal @ease-in-out;
   }
@@ -105,7 +108,8 @@
 
   &-submenu &-sub {
     cursor: initial;
-    transition: background @animation-duration-slow @ease-in-out,
+    transition:
+ background @animation-duration-slow @ease-in-out,
       padding @animation-duration-slow @ease-in-out;
   }
 
@@ -235,7 +239,9 @@
     padding: @menu-item-padding;
     white-space: nowrap;
     cursor: pointer;
-    transition: border-color @animation-duration-slow, background @animation-duration-slow,
+    transition:
+ border-color @animation-duration-slow,
+ background @animation-duration-slow,
       padding @animation-duration-slow @ease-in-out;
 
     .@{menu-prefix-cls}-item-icon,
@@ -246,12 +252,16 @@
       top: 1px;
       margin-right: @menu-icon-margin-right;
       font-size: @menu-icon-size;
-      transition: font-size @menu-animation-duration-normal @ease-out,
-        margin @animation-duration-slow @ease-in-out, color @animation-duration-slow;
+      transition:
+ font-size @menu-animation-duration-normal @ease-out,
+        margin @animation-duration-slow @ease-in-out,
+ color @animation-duration-slow;
       + span {
         // margin-left: @menu-icon-margin-right;
         opacity: 1;
-        transition: opacity @animation-duration-slow @ease-in-out, margin @animation-duration-slow,
+        transition:
+ opacity @animation-duration-slow @ease-in-out,
+ margin @animation-duration-slow,
           color @animation-duration-slow;
       }
     }
@@ -339,8 +349,10 @@
         height: 1.5px;
         background-color: currentColor;
         border-radius: 2px;
-        transition: background @animation-duration-slow @ease-in-out,
-          transform @animation-duration-slow @ease-in-out, top @animation-duration-slow @ease-in-out,
+        transition:
+ background @animation-duration-slow @ease-in-out,
+          transform @animation-duration-slow @ease-in-out,
+ top @animation-duration-slow @ease-in-out,
           color @animation-duration-slow @ease-in-out;
         content: '';
       }
@@ -476,7 +488,8 @@
         border-right: @menu-item-active-border-width solid @menu-highlight-color;
         transform: scaleY(0.0001);
         opacity: 0;
-        transition: transform @menu-animation-duration-normal @ease-out,
+        transition:
+ transform @menu-animation-duration-normal @ease-out,
           opacity @menu-animation-duration-normal @ease-out;
         content: '';
       }
@@ -517,7 +530,8 @@
       &::after {
         transform: scaleY(1);
         opacity: 1;
-        transition: transform @menu-animation-duration-normal @ease-in-out,
+        transition:
+ transform @menu-animation-duration-normal @ease-in-out,
           opacity @menu-animation-duration-normal @ease-in-out;
       }
     }
@@ -538,7 +552,9 @@
       .@{menu-prefix-cls}-submenu-title {
         display: flex;
         align-items: center;
-        transition: border-color @animation-duration-slow, background @animation-duration-slow,
+        transition:
+ border-color @animation-duration-slow,
+ background @animation-duration-slow,
           padding 0.1s @ease-out;
 
         > .@{menu-prefix-cls}-title-content {
@@ -559,13 +575,8 @@
     width: @menu-collapsed-width;
 
     > .@{menu-prefix-cls}-item,
-    > .@{menu-prefix-cls}-item-group
-      > .@{menu-prefix-cls}-item-group-list
-      > .@{menu-prefix-cls}-item,
-    > .@{menu-prefix-cls}-item-group
-      > .@{menu-prefix-cls}-item-group-list
-      > .@{menu-prefix-cls}-submenu
-      > .@{menu-prefix-cls}-submenu-title,
+    > .@{menu-prefix-cls}-item-group > .@{menu-prefix-cls}-item-group-list > .@{menu-prefix-cls}-item,
+    > .@{menu-prefix-cls}-item-group > .@{menu-prefix-cls}-item-group-list > .@{menu-prefix-cls}-submenu > .@{menu-prefix-cls}-submenu-title,
     > .@{menu-prefix-cls}-submenu > .@{menu-prefix-cls}-submenu-title {
       left: 0;
       padding: 0 ~'calc(50% - @{menu-icon-size-lg} / 2)';
@@ -629,16 +640,9 @@
     box-shadow: none;
 
     & > .@{menu-prefix-cls}-item,
-    &
-      > .@{menu-prefix-cls}-item-group
-      > .@{menu-prefix-cls}-item-group-list
-      > .@{menu-prefix-cls}-item,
+    & > .@{menu-prefix-cls}-item-group > .@{menu-prefix-cls}-item-group-list > .@{menu-prefix-cls}-item,
     & > .@{menu-prefix-cls}-submenu > .@{menu-prefix-cls}-submenu-title,
-    &
-      > .@{menu-prefix-cls}-item-group
-      > .@{menu-prefix-cls}-item-group-list
-      > .@{menu-prefix-cls}-submenu
-      > .@{menu-prefix-cls}-submenu-title {
+    & > .@{menu-prefix-cls}-item-group > .@{menu-prefix-cls}-item-group-list > .@{menu-prefix-cls}-submenu > .@{menu-prefix-cls}-submenu-title {
       line-height: @menu-inline-toplevel-item-height;
       height: @menu-inline-toplevel-item-height;
     }
diff --git a/tools/buildOthers.sh b/tools/buildOthers.sh
index ae2bd210f..5f87bc865 100755
--- a/tools/buildOthers.sh
+++ b/tools/buildOthers.sh
@@ -19,7 +19,7 @@ compileLess() {
           then
               # echo $1"/"$file   #在此处处理文件即可
               newfile=`echo $1"/"$file | sed 's/.less/.css/g'`
-              lessc $1"/"$file $newfile
+              lessc --js $1"/"$file $newfile
           fi
           if [ "$file" = "index.js" ]  # 约定index.less作为入口文件
           then
diff --git a/tools/compileTs/tsconfig.json b/tools/compileTs/tsconfig.json
index 068a50094..77385308f 100644
--- a/tools/compileTs/tsconfig.json
+++ b/tools/compileTs/tsconfig.json
@@ -21,7 +21,8 @@
     "typeRoots": [
       "../../source/typings",
       "../../node_modules/@types"
-    ]
+    ],
+    "downlevelIteration": true,
   },
   "include": [
     "../../temp/**/*"
diff --git a/webpack.config.dev.site.js b/webpack.config.dev.site.js
index 70a18750f..8698b7791 100644
--- a/webpack.config.dev.site.js
+++ b/webpack.config.dev.site.js
@@ -111,7 +111,10 @@ module.exports = {
         }, {
           loader: 'css-loader'
         }, {
-          loader: 'less-loader'
+          loader: 'less-loader',
+          options: {
+            javascriptEnabled: true
+          },
         }]
       },
       {
diff --git a/webpack.config.prod.dist.js b/webpack.config.prod.dist.js
index e6d1a4c14..6f88df8f2 100644
--- a/webpack.config.prod.dist.js
+++ b/webpack.config.prod.dist.js
@@ -127,6 +127,7 @@ module.exports = {
           }, {
             loader: 'less-loader',
             options: {
+              javascriptEnabled: true,
               minimize: true
             }
           }],
diff --git a/webpack.config.prod.site.js b/webpack.config.prod.site.js
index 0ba057acc..985e7342b 100644
--- a/webpack.config.prod.site.js
+++ b/webpack.config.prod.site.js
@@ -55,6 +55,7 @@ const getHappyPackPlugin = () => [
         loader: 'less-loader',
         options: {
           sourceMap: false,
+          javascriptEnabled: true,
         }
       }
     ],