jquery折叠菜单效果
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<style>
.menu {
width: 200px;
background-color: #f0f0f0;
}
.item {
padding: 10px;
border-bottom: 1px solid #ccc;
cursor: pointer;
}
.title {
margin: 0;
}
.sub-menu {
display: none;
padding-left: 20px;
}
.sub-menu li {
margin-bottom: 5px;
}
</style>
</head>
<body>
<div>
<div class="item active">
<h2 class="title">菜单项 1</h2>
<ul class="sub-menu" style="display: block;">
<li>子菜单项 1</li>
<li>子菜单项 2</li>
<li>子菜单项 3</li>
</ul>
</div>
<div class="item">
<h2 class="title">菜单项 2</h2>
<ul class="sub-menu">
<li>子菜单项 1</li>
<li>子菜单项 2</li>
<li>子菜单项 3</li>
</ul>
</div>
<!-- 更多菜单项... -->
</div>
<script src="https://cdn.bootcdn.net/ajax/libs/jquery/3.7.1/jquery.js"></script>
<script>
$(document).ready(function () {
$('.item').click(function () {
$(this).children('.sub-menu').slideToggle();
$(this).toggleClass('active');
});
});
</script>
</body>
</html>
原文地址：https://blog.csdn.net/qq_36437991/article/details/144362621
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