css呼吸灯

效果图

只是简单的呼吸效果，您按照需求自己拓展即可。

代码

@keyframes light{from{opacity: 1;}to{opacity: 0.2;}}

使用

.view{animation-name: light;animation-duration: 1s;animation-timing-function: linear;animation-iteration-count: infinite;animation-direction: alternate;background: red;
}