animation-name和animation-duration

animation-timing-function

ease-in

linear

animation-fill-mode

none

forwards

backwards

both

animation-delay

延迟一秒执行，正数

延迟一秒执行，负数

animation-play-state

鼠标移上去暂停

animation-iteration-count

重复执行2次

重复执行1.5次

无限次数执行

animation-direction

normal

reverse

alternate

alternate-reverse