弹球落地

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示例代码:

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>ball</title>
</head>
<style type="text/css">
.box
width: 400px;
height: 300px;
border: 1px #ccc solid;
background-color: #eeeeee;
margin: 50px auto;
position: relative;

.box .ball
width: 140px;
height: 140px;
border-radius: 50%;
position: absolute;
top: 0px;
left: 50%;
margin-left: -70px;
background: -webkit-linear-gradient(top,#fff,#999);
box-shadow: inset 0 0 30px #999,inset 0 -15px 70px #999999;
animation: ballmove 1s ease-in infinite;

.box .ball:after
content: " ";
display: block;
width: 60px;
height: 30px;
border-radius: 50%;
position: absolute;
top: 10px;
left: 50%;
margin-left: -30px;
background: -webkit-linear-gradient(#ffffff,#cccccc);
z-index: 1;

.shadow
width: 80px;
height: 60px;
border-radius: 50%;
position: absolute;
bottom: 0;
left: 50%;
margin-left: -40px;
background: rgba(20,20,2,0.1);
box-shadow: 0 0 20px 20px rgba(20,20,20,.1);
transform: scaleY(.3);
animation: shrink 1s ease-in infinite;

@keyframes ballmove
0%
top:0;
height: 140px;

65%
top: 160px;
height: 140px;

75%
height: 120px;

100%
top: 0;
height: 140px;


@keyframes ballmove
0%
top:0;
height: 140px;

65%
top: 160px;
height: 140px;

75%
height: 120px;

100%
top: 0;
height: 140px;


@keyframes shrink
0%
width: 90px;
height: 60px;

65%
width: 10px;
height: 5px;
margin-left: -5px;
background-color: rgba(20,20,20,.3);
box-shadow: 0px 0px 25px 20px rgba(20,20,20,.3);

100%
width: 90px;
height: 60px;
background-color: rgba(20,20,20,.1);
box-shadow: 0px 0px 25px 20px rgba(20,20,20,.1);


</style>
<body>
<div class="box">
<div class="ball"></div>
<div class="shadow"></div>
</div>
</body>
</html>
效果图:

技术图片

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