答案
1、plate
2、bento
3、#fancy
4、plate apple
5、#fancy pickle
6、small
7、orange.small
8、bento orange
9、plate,bento
10、*
11、plate *
12、plate + apple
13、bento ~ pickle
14、plate>apple
15、orange:first-child
16、plate :only-child
17、#fancy*:last-child,apple,pickle
18、div :nth-child(3)或:nth-child(3)
19、div :nth-last-child(4)或:nth-last-child(4)
20、apple:first-of-type
21、:nth-of-type(even)
22、:nth-of-type(2n+3)
23、plate apple:only-of-type
24、orange:last-of-type,apple:last-of-type
25、bento:empty
26、:not(.small,plate)