diff --git a/components/layout/Sider.jsx b/components/layout/Sider.jsx
index 5914821bb..0b909895c 100644
--- a/components/layout/Sider.jsx
+++ b/components/layout/Sider.jsx
@@ -77,18 +77,6 @@ export default {
     collapsedWidth: 80,
   }),
 
-  // static childContextTypes = {
-  //   siderCollapsed: PropTypes.bool,
-  //   collapsedWidth: PropTypes.oneOfType([PropTypes.number, PropTypes.string]),
-  // };
-
-  // static contextTypes = {
-  //   siderHook: PropTypes.object,
-  // };
-
-  // private mql: MediaQueryList;
-  // private uniqueId: string;
-
   data () {
     this.uniqueId = generateId('ant-sider-')
     let matchMedia
diff --git a/components/layout/index.en-US.md b/components/layout/index.en-US.md
index 766f84205..5b0e2dfdc 100644
--- a/components/layout/index.en-US.md
+++ b/components/layout/index.en-US.md
@@ -34,7 +34,7 @@ The sidebar.
 | breakpoint | [breakpoints](/ant-desing-vue/components/grid#api) of the responsive layout | Enum { 'xs', 'sm', 'md', 'lg', 'xl', 'xxl' } | - |
 | class | container className | string | - |
 | collapsed(v-model) | to set the current status | boolean | - |
-| collapsedWidth | width of the collapsed sidebar, by setting to `0` a special trigger will appear | number | 64 |
+| collapsedWidth | width of the collapsed sidebar, by setting to `0` a special trigger will appear | number | 80 |
 | collapsible | whether can be collapsed | boolean | false |
 | defaultCollapsed | to set the initial status | boolean | false |
 | reverseArrow | reverse direction of arrow, for a sider that expands from the right | boolean | false |
diff --git a/components/layout/index.zh-CN.md b/components/layout/index.zh-CN.md
index f2769b1f3..ab1d407ed 100644
--- a/components/layout/index.zh-CN.md
+++ b/components/layout/index.zh-CN.md
@@ -34,7 +34,7 @@
 | breakpoint | 触发响应式布局的[断点](/ant-design-vue/components/grid#API) | Enum { 'xs', 'sm', 'md', 'lg', 'xl', 'xxl' } | - |
 | class | 容器 class | string | - |
 | collapsed(v-model) | 当前收起状态 | boolean | - |
-| collapsedWidth | 收缩宽度，设置为 0 会出现特殊 trigger | number | 64 |
+| collapsedWidth | 收缩宽度，设置为 0 会出现特殊 trigger | number | 80 |
 | collapsible | 是否可收起 | boolean | false |
 | defaultCollapsed | 是否默认收起 | boolean | false |
 | reverseArrow | 翻转折叠提示箭头的方向，当 Sider 在右边时可以使用 | boolean | false |