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                            # 清除浮動
## 原理
浮動元素脫離文檔流，不占據空間。浮動元素碰到包含它的邊框或者浮動元素的邊框停留。
![](https://img.kancloud.cn/57/22/5722a4f1958769f4501f7a98fe87bd9f_889x557.png)
## 清除浮動
### 1.父元素設置高度
### 2.額外標簽法
### 3.clear：both
### 4. 父級設置偽類
### 5.父級設置overflow：hidden

                    
                
        
                
            
        
                
    
                
    
                
        
                
    
                

                







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