HTML5[4]：去除不必要的标签，完全使用css实现样式

HTML5[4]：去除不必要的标签，完全使用css实现样式

1）div、span的区别，div默认是沾满一行，span默认是inline

2）去除font之类的标签
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原文地址：https://www.cnblogs.com/iihe602/p/4256784.html