餐厅游戏

1.元素选择器：plate[图片上传中...(1.png-64caa9-1536492187011-0)]

2.元素选择器：bento
3.ID选择器：#fancy
4.后代元素选择器：plate apple
5.ID选择器：#fancy pickle
6.类选择器：.small
7.类选择器：orange.small
8.后代元素选择器：bento apple
9.并集选择器：plate,bento
10.通配符选择器：*
11.通配符选择器：plate *
12.兄弟选择器：plate+apple
13.兄弟选择器：bento~pickle
14.子元素选择器：plate>apple
15.第一个子元素：orange:first-child
16.apple,pickle.small:only-child
17.最后一个子元素：apple:last-child,pickle:last-child
18.指定位置的子元素：plate:nth-child(3)

20.apple:first-of-type
21.plate:nth-of-type(even)
22.plate:nth-of-type(6n+3)，plate:nth-of-type(6n+5)
23.apple:only-of-type
24.orange:last-of-type,apple:last-of-type
25.bento:empty
26.否定伪类：apple:not(.small)