CSS 动画示例
一个动画示例,球沿着边框跑:
代码如下:
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>CSS animation</title><!--20180308 10:01--> <style type="text/css"> div{ width:200px; height:200px; border:1px solid red; margin:120px auto; } span{ display: inline-block; width:20px; height:20px; background: orange; border-radius: 100%; animation:movearound 5s linear 2s infinite alternate; -webkit-animation:movearound 5s linear 2s infinite alternate;/*infinite是无限循环,数字是循环几次*/ -moz-animation: movearound 5s linear 2s infinite alternate;/*alternate是奇数次的时候向前播放,偶数次向后播放*/ -o-animation: movearound 5s linear 2s infinite alternate;
animation-fill-mode:forwards;/*forwards是动画结束时保持最后一刻的状态;backwords是在动画有延迟播放的情况下,开始播放时迅速具有初始帧;both是元素同时具有forwards和backwords的属性'None是默认回到初始帧*/ } @keyframes movearound{ 0%{ transform:translateX(0); } 25%{ transform:translateX(180px); } 50%{ transform:translate(180px,180px); } 75%{ transform:translate(0,180px); background: blue; } 100%{ transform:translateY(0); background: red; } } </style> </head> <body> <div><span></span></div> </body> </html>