2-22编程练习

来源：3-1 @keyframes

卡Kami蜜

2017-10-13 10:31:10

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>2-9</title>
<style type="text/css">
div {
font-family: Arial;
font-size: 72px;
font-weight: bold;
position: fixed;
right: 0;
left: 0;
width: 30px;
height: 30px;
margin: auto;
transform: rotate(90deg);
/*此处写代码*/
bottom: 300px;
animation: go_down 1s both infinite;
}
@keyframes go_down {
0%{}
30%{transform: translateY(30px) rotate(90deg)}
50%{transform: translateY(20px) rotate(90deg)}
70%{transform: translateY(30px) rotate(90deg)}
}
</style>
</head>
<body>
<div>></div>
</body>
</html>