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font-size="6"和font-size="6px"是不一样的，font-size="6px"显示的字更小，谁知道这是为什么？是不是没有写px的话，后面会默认加上什么单位？
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数据分析师
2017-09-30 23:28:33
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迷茫
2016-12-21 16:32:35
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浏览器在读你的代码时,后面不加单位。是不会读出来的。
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浏览器在读你的代码时,后面不加单位。是不会读出来的。