#### 响应式布局
Layout.Sider 支持响应式布局。
> 说明:配置 `breakpoint` 属性即生效,视窗宽度小于 `breakpoint` 时 Sider 缩小为 `collapsedWidth` 宽度,若将 `collapsedWidth` 设置为零,会出现特殊 trigger。
#### Responsive
Layout.Sider supports responsive layout.
> Note: You can get a responsive layout by setting `breakpoint`, the Sider will collapse to the width of `collapsedWidth` when window width is below the `breakpoint`. And a special trigger will appear if the `collapsedWidth` is set to `0`.
```vue
  
    
      
      
        
          
          nav 1
        
        
          
          nav 2
        
        
          
          nav 3
        
        
          
          nav 4
        
      
    
    
      
      
        
          content
        
      
      
        Ant Design ©2018 Created by Ant UED
      
    
  
```