课程
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/十天精通CSS3
.slider ul li::after 和
.slider ul li ::after
这两个有什么区别吗，为什么第一条跑不出效果
2018-05-25
源自：十天精通CSS3 7-8
正在回答
这两个意思是不一样啊，第一条是在li元素前面加内容，下面是在li元素的后代前面加内容，而我们就是要在每个li元素的后代a里面加内容
好吃的蛋包饭
可以理解为java或者cc++中的for循环while循环等
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举报
本课程为CSS3入门教程，深刻详解CSS3知识让网页穿上绚丽装备
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