<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<style>
* {
margin: 0;
padding: 0;
}
#box {
width: 900px;
height: 281px;
margin: 50% auto;
background-color: black;
overflow: hidden;
}
#ula {
width: 3600px;
}
#box ul {
position: relative;
width: 8000px;
height: 281px;
left: 0px;
transition: left .5s ease 0s;
}
#ula li {
float: left;
list-style: none;
width: 900px;
}
#lr {
position: absolute;
top: 1100px;
left: 750px;
}
</style>
<div id="box">
<ul id="ula">
<li><img src="images/11.jpg" alt=""></li>
<li><img src="images/22.jpg" alt=""></li>
<li><img src="images/33.jpg" alt=""></li>
<li><img src="images/44.jpg" alt=""></li>
<li><img src="images/55.jpg" alt=""></li>
</ul>
</div>
<div id="lr">
<a href="javascript:;" id="lt">11</a>
<a href="javascript:;" id="rt">22</a>
</div>
<script>
var ula = document.getElementById('ula');
var lt = document.getElementById('lt');
var rt = document.getElementById('rt');
var cloneli = ula.firstElementChild.cloneNode(true);
ula.appendChild(cloneli);
var inx = 0;
lt.onclick = function() {
if (inx == 0) {
ula.style.transition = 'none';
ula.style.left = -5 * 900 + 'px';
setTimeout(function() {
ula.style.transition = 'left .5s ease 0s';
inx = 4;
ula.style.left = -inx * 900 + 'px';
}, 0);
} else {
inx--;
ula.style.left = -inx * 900 + 'px';
}
}
rt.onclick = function() {
ula.style.transition = 'left .5s ease 0s';
inx++;
if (inx > 4) {
setTimeout(function() {
ula.style.transition = 'none';
ula.style.left = 0;
inx = 0
}, 500);
}
ula.style.left = -inx * 900 + 'px';
}
</script>
</body>
</html>