freeCodeCamp/guide/chinese/certifications/responsive-web-design/css-flexbox/use-the-flex-direction-property-to-make-a-column/index.md

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Use the flex-direction Property to Make a Column	使用flex-direction属性创建列

使用flex-direction属性创建列

要将Flex容器的子元素堆叠在一起，您可以通过以下方式更改_flex方向_ ：

#main-container { 
    display: flex; 
    flex-direction: column; 
 }