纯 css 无限轮播
原理：
示例使用三张图片，第一张和最后一张相同
代码：
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>纯 css 无限轮播</title>
<style>
*{
margin:0;
padding:0;
}
div{
width:300px;
height:188px;
border:1px solid #000;
margin:100px auto;
background-color:blue;
overflow:hidden;
}
.pic{
width:300px;
}
ul{
width:900px; /* 每张图片300px *张数3 */
height:188px;
background-color:black;
animation:carousel 8s linear 2s infinite normal;/**/
}
ul li{
width:300px;
height:188px;
list-style:none;
float:left;
border:1px solid #000000;
box-sizing:border-box;
}
@keyframes carousel {
0%,60% { margin-left:0px; }
65%,90% { margin-left:-300px; }
99%,100% { margin-left:-600px; }
}
</style>
</head>
<body>
<div>
<ul>
<li><img class="pic" src="image/1.jpg" alt=""></li>
<li><img class="pic" src="image/2.jpg" alt=""></li>
<li><img class="pic" src="image/1.jpg" alt=""></li>
</ul>
</div>
</body>
</html>
