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