* [**transition**](https://www.w3schools.com/cssref/css3_pr_transition.asp) ``` transition: property duration timing-function delay; ``` * [**animation**](https://www.w3schools.com/cssref/css3_pr_animation.asp) ``` animation: name duration timing-function delay iteration-count direction fill-mode play-state; ``` * [**@keyframes**](https://www.w3schools.com/cssref/css3_pr_animation-keyframes.asp)：定义了具体的动画实现，一般配合animation 使用。 * [**animation vs transition**](https://cssanimation.rocks/transition-vs-animation/)