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分组选择符还有点不明白？
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数据分析师
数据分析师2017-09-30 23:30:02 2 floor

Still confused about the group selector? -PHP Chinese website Q&A-Still not sure about the group selector? -PHP Chinese website Q&A

Please watch and learn.

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迷茫
迷茫2016-12-21 17:32:11 1 floor

因为题目要求是第一段和第二段中<span>标签内元素颜色为绿色，用p,span{color:green;}就显示段落颜色都为绿色了，不符合题目要求。用.first,#second span{color:green;}是最准确的

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