下面我将用几个典型的实例来给大家讲解:nth-child的实际用途:
Tips: 还用低版本的IE浏览器的哥们请绕过!
:nth-child(2)选取第几个标签,[2可以是你想要的数字]
.demo01 li:nth-child(2){background:#090}
:nth-child(n+4)选取大于等于4标签,[n]表示从整数,下同
.demo01 li:nth-child(n+4){background:#090}
:nth-child(-n+4)选取小于等于4标签
.demo01 li:nth-child(-n+4){background:#090}
:nth-child(2n)选取偶数标签,2n也可以是even
.demo01 li:nth-child(2n){background:#090}
:nth-child(2n-1)选取奇数标签,2n-1可以是odd
.demo01 li:nth-child(2n-1){background:#090}
:nth-child(3n+1)自定义选取标签,3n+1表示[隔二取一]
.demo01 li:nth-child(3n+1){background:#090}
:last-child选取最后一个标签
.demo01 li:last-child{background:#090}
:nth-last-child(3)选取倒数第几个标签,3表示选取第3个
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