方块跳动
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>跳动</title>
<style>
.box:before {
content: '';
position: absolute;
z-index: 2;
top: 60px;
left: 50px;
50px;
height: 50px;
background: #c00;
border-radius: 2px;
transform: rotate(45deg);
-webkit-animation: box .8s infinite;
}
@-webkit-keyframes box {
0% {
top: 50px;
transform: rotate(90deg);
}
20% {
border-radius: 2px; /*从20%的地方才开始变形*/
}
50% {
top: 80px;
transform: rotate(45deg);
border-bottom-right-radius: 25px;
}
80% {
border-radius: 2px; /*到80%的地方恢复原状*/
}
100% {
top: 50px;
transform: rotate(0deg);
}
}
.box:after {
content: '';
position: absolute;
z-index: 1;
top: 128px;
left: 52px;
44px;
height: 3px;
background: #eaeaea;
border-radius: 100%;
-webkit-animation: shadow .8s infinite;
}
@-webkit-keyframes shadow {
0%, 100% {
left: 54px;
40px;
background: #eaeaea;
}
50% {
top: 126px;
left: 50px; /*让阴影保持在原位*/
50px;
height: 7px;
background: #eee;
}
}
</style>
</head>
<body>
<div class="box"></div>
</body>
</html>