手风琴案例

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        * {
            margin: 0;
            padding: 0;
        }

        ul {
            list-style: none;
            width: 1300px;
        }

        #box {
            width: 1200px;
            height: 400px;
            border: 2px solid red;
            margin: 100px auto;
        }

        #box li {
            width: 240px;
            height: 400px;
            float: left;
        }
        li:nth-child(1){
            background: url("images/1.jpg");
        }
        li:nth-child(2){
            background: url("images/2.jpg");
        }
        li:nth-child(3){
            background: url("images/3.jpg");
        }
        li:nth-child(4){
            background: url("images/4.jpg");
        }
        li:nth-child(5){
            background: url("images/5.jpg");
        }
    </style>
    <script src="js/jquery-1.12.4.js"></script>
    <script src="js/jQuery-accordion.js"></script>
</head>
<body>
<div id="box">
    <ul>
        <li></li>
        <li></li>
        <li></li>
        <li></li>
        <li></li>
    </ul>
</div>
</body>
</html>
<script>
    $("#box").accordion(100);
</script>

JS部分

$.fn.accordion=function (width) {
    var $li=this.find('li');
    var allWidth=this.width();
    var maxWidth=allWidth-($li.length-1)*width;
    var vagWidth=allWidth/$li.length;
    $li.mouseenter(function () {
        $(this).stop().animate({width:maxWidth}).siblings().stop().animate({width:width});
    })
    $li.mouseleave(function () {
        $li.stop().animate({width:vagWidth})
    })
}

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