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ClassContent/历届学生/18课程/class18/项目/上课项目/饿了么/笔记.txt
2024-09-27 02:06:13 +08:00

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flex + rem
flex:主要用来实现快速布局(他能够把布局上很多事情交给浏览器进行自动的计算)
13
父元素
6
子元素
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