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                            ## **W3C是什么？對于web中的W3C標準的理解？**

web標準就是將：**結構**(HTML),**樣式**(CSS),和**行為**(javascript)分離
W3C對web標準提出了規范化的要求
1）標簽字母要**小寫**；
2）標簽要**閉合**；
3）標簽**不允許**隨意嵌套。
盡量使用外聯css樣式表和js腳本
id class 要見名知義 **標簽越少，加載越快**

                    
                
        
                
            
        
                
    
                
    
                
        
                
    
                

                







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