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css新手问题_html/css_WEB-ITnose

WBOY
WBOYOriginal
2016-06-21 08:51:27871browse

.breadcrumb > li + li:before 这个选择器是什么意思?


回复讨论(解决方案)

选择.breadcrumb这个类的子元素里面所有li元素的后面一个相邻的li元素
:before是在这些元素前面增加的内容

是不是可以这么看
(.breadcrumb > li + li):before
前面是一个整体,然后再加伪类

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