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:last-child 选择器没有生效，请问怎么回事？

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

如图，
.item1:last-child 选择器没有生效，请问怎么回事？

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answered Jan 27, 2021 by 深蓝 (71.8m points)

.className:last-child: 匹配的是父元素的最后一个子元素，且同时满足类名为className的。两者缺一不可！

与恶龙缠斗过久,自身亦成为恶龙；凝视深渊过久,深渊将回以凝视…

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