过渡动画transition

语法:
transition: transition-property transition-duration
transition-timing-function transition-delay

transition-property: 规定设置过渡效果的CSS属性的名称

transition-duration: 规定完成过渡效果需要多少秒或毫秒

transition-timing-function: 规定速度效果的速度曲线

transition-delay: 定义过渡效果何时开始

transition-property

transition-property: none | all | property;

transition-duration

transition-duration: ns | ms;

transition-timing-function

transition-timing-function: linear | ease | ease-in | ease-out | ease-in-out | cubic-bezier(n,n,n,n);

transition-delay

transition-delay: ns | ms