无缝滚动

<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title></title>
    <style>
        *{
            margin: 0;
            padding: 0;
            list-style: none;
        }
        #box{
            position: relative;
             1100px;
            height: 220px;
            overflow: hidden;
            border: 1px solid black;
            margin: 50px auto;
        }
        #box ul{
            position: absolute;
            left: 0;
        }
        #box ul li{
             200px;
            height: 200px;
            padding: 10px;
            float: left;
        }
    </style>
    <script>
        window.onload = function(){
            var oBox = document.getElementById('box');
            var oUl = document.getElementById('ul');
            var aLi = oUl.children;
            oUl.innerHTML += oUl.innerHTML;
            oUl.style.width = aLi[0].offsetWidth*aLi.length + 'px';
            setInterval(function(){
                var l = oUl.offsetLeft - 5;
                if(l <= -oUl.offsetWidth/2){
                    l = 0;
                }
                oUl.style.left = l + 'px';
            },30)
        }
    </script>
</head>
<body>
<div id="box">
    <ul id="ul">
        <li><img src="image/1.jpg"width="200px" height="200px"></li>
        <li><img src="image/2.jpg"width="200px" height="200px"></li>
        <li><img src="image/3.jpg"width="200px" height="200px"></li>
        <li><img src="image/4.jpg"width="200px" height="200px"></li>
        <li><img src="image/5.jpg"width="200px" height="200px"></li>
    </ul>
</div>
</body>
</html>
 
【推广】 免费学中医，健康全家人
原文地址：https://www.cnblogs.com/wang1593840378/p/6041043.html