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Why do you have to add important? Can't you just delete the following one? Just set the format you need. Why do you need more code behind it? -PHP Chinese website Q&A-Why do you have to add important? Can't you just delete the following one? Just set the format you need. Why do you need more code behind it? -PHP Chinese website Q&A

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CSS講究重復(fù)利用和格式統(tǒng)一，這是一種不怎么被推薦的特殊情況

合理情形之一：有時候我也會包含一些你無法修改的html，如來自第三方服務(wù)的新聞源，如果這些html中有些內(nèi)連樣式與你的設(shè)計不符合，，你就可以使用！important來覆蓋這些樣式。