[css] 第552天 css中定义class时，中间有空格和没空格的区别是什么？ #3076

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[css] 第552天 css中定义class时，中间有空格和没空格的区别是什么？#3076

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haizhilin2013

opened on Oct 18, 2020

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第552天 css中定义class时，中间有空格和没空格的区别是什么？

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haizhilin2013

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csscsscss

on Oct 18, 2020

zhijinga commented on Oct 19, 2020

zhijinga

on Oct 19, 2020

没空格表示该元素需同时拥有这两个class
有空格表示第二个元素是第一个元素的后代

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