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                            * display：flex
* 注意，設為 Flex 布局以后，子元素的float、clear和vertical-align屬性將失效
~~~
基本屬性 
        flex-direction	
        	row | row-reverse | column | column-reverse;
        flex-wrap		
        	nowrap | wrap | wrap-reverse是否換行
        flex-flow		
        	是flex-direction屬性和flex-wrap屬性的簡寫形式，默認值為row nowrap
        justify-content
        	justify-content: flex-start | flex-end | center | space-between | space-around;
        align-items
        	align-items: flex-start | flex-end | center | baseline | stretch;
        align-content
        	align-content: flex-start | flex-end | center | space-between | space-around | stretch;
~~~
* 看阮一峰
                    
                
        
                
            
        
                
    
                
    
                
        
                
    
                

                







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