css3 关键帧动画 空间变换

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <style>
        html{
            font-size: 14px;
        }
        #app{
            background:#fff000;
            height:300px;
            width:600px;
            text-align: center;
            line-height: 300px;
        }

        #app:hover{
            /*animation 关键帧动画 必须有执行时间alternate 表示反向动画*/
            animation:my 2s ease infinite alternate;
            border:3px red solid;
        }

    /*也可以简单的from{} to{}*/ @keyframes my
{ 0%{ font-size: 4rem; background:red; opacity: 1; /*矩阵函数的参数必须有单位 除了scale*/ transform:translate(0px,40px) rotate(0deg) scale(1) } 50%{ font-size: 0.5rem; opacity: .5; background:orangered; transform:translate(50px,40px) rotate(0deg) scale(0.5) } 100%{ font-size: 1rem; opacity:0; background:indianred; transform:translate(100px,40px) rotate(360deg) scale(0.3) } } </style> </head> <body> <div id="app"> Hi 你好 </div> </body> </html>
原文地址:https://www.cnblogs.com/xuezizhenchengxuyuan/p/6957722.html