<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title></title>
<style type="text/css">
.box{
width: 1200px;
height: 600px;
border: 1px solid black;
margin: auto;
background-image: url(img/xm.jpg.jpg );
background-image: url(img/xm.jpg);
animation:changge 2s 2 linear 2s;
}
.cbox{
width: 1200px;
height: 600px;
border: 1px solid black;
margin: auto;
background-image: url(img/xm.jpg);
animation:changge 2s 2 linear 5s;
}
@keyframes changge {
0%,15%{width: 1200px;
height: 600px;
border: 5px solid orange;
}
60%{
width: 1200px;
height: 600px;
background-color: blue;
}
}
</style>
</head>
<body>
<div class="box">
<div class="cbox"></div>
</div>
</body>
</html>