<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>动画作业</title>
<style type="text/css">
.box{
width: 300px;
height: 125px;
border: 1px solid #000;
margin: 200px auto 0;
}
.box p{
text-align: center;
width: 100%;
}
.box div{
width: 30px;
height: 70px;
float: left;
background-color: gold;
margin: 15px;
border-radius: 10px;
}
.box div:nth-child(1){
animation: loading 750ms ease 0s infinite alternate;
background-color: black;
}
.box div:nth-child(2){
animation: loading 750ms ease 100ms infinite alternate;
background-color:black;
}
.box div:nth-child(3){
animation: loading 750ms ease 200ms infinite alternate;
background-color: black;
}
.box div:nth-child(4){
background-color: black;
animation: loading 750ms ease 300ms infinite alternate;
}
.box div:nth-child(5){
background-color: black;
animation: loading 750ms ease 400ms infinite alternate;
}
@keyframes loading{
from{
transform: scaleY(1);
}
to{
transform: scaleY(0.5);
}
}
</style>
</head>
<body>
<div class="box">
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<p>ZZH...</p>
</div>
</body>
<ml>
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