This article shares the specific code of the Layui implementation of the three-level navigation menu for your reference. The specific content is as follows
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
<title>.Netocean</title>
<link href="~/layui-v2.2.5/layui-v2.2.5/layui/css/" rel="stylesheet" /> // Pay attention to Lu Jin
<style>
ol li a {
background-color: rgba(0,0,0,1) !important;
}
.three_this {
background-color: #808080 !important;
}
</style>
</head>
<body class="layui-layout-body">
<div class="layui-layout layui-layout-admin">
<div class="layui-header">
<div class="layui-logo">layui Backstage layout</div>
<ul class="layui-nav layui-layout-left">
<li class="layui-nav-item"><a href="">Console</a></li>
<li class="layui-nav-item"><a href="">Product Management</a></li>
<li class="layui-nav-item"><a href="">User Management</a></li>
<li class="layui-nav-item">
<a href="javascript:;" >daily</a>
<dl class="layui-nav-child">
<dd><a href="">Email Management</a></dd>
<dd><a href="">Message management</a></dd>
<dd><a href="">Authorization Management</a></dd>
</dl>
</li>
</ul>
<ul class="layui-nav layui-layout-right">
<li class="layui-nav-item">
<a href="javascript:;" >
<img src="~/images/" class="layui-nav-img" />
.Netocean
</a>
<dl class="layui-nav-child">
<dd><a href="">Basic information</a></dd>
<dd><a href="">Security settings</a></dd>
</dl>
</li>
<li class="layui-nav-item"><a href="">quit</a></li>
</ul>
</div>
<div class="layui-side layui-bg-black">
<div class="layui-side-scroll">
<ul class="layui-nav layui-nav-tree" lay-filter="test">
<li class="layui-nav-item layui-nav-itemed">
<a class="" href="javascript:;" >All Products</a>
<dl class="layui-nav-child">
<dd>
<a href="javascript:;" class="menu_three ">List one</a>
<ol class="layui-nav-child" style="display: none;">
<li><a href="javascript:;" >三级List one</a></li>
<li><a href="javascript:;" >Level 3 List Two</a></li>
<li><a href="javascript:;" >Level 3 List</a></li>
<li><a href="">Hyperlink</a></li>
</ol>
</dd>
<dd><a href="javascript:;" class="menu_three">List 2</a>
<ol class="layui-nav-child" style="display: none;">
<li><a href="javascript:;" >三级List one</a></li>
<li><a href="javascript:;" >Level 3 List Two</a></li>
<li><a href="javascript:;" >Level 3 List</a></li>
<li><a href="">Hyperlink</a></li>
</ol>
</dd>
<dd><a href="javascript:;" >List three</a></dd>
<dd><a href="">Hyperlink</a></dd>
</dl>
</li>
<li class="layui-nav-item"><a href="">Cloud Market</a></li>
<li class="layui-nav-item"><a href="">Publish products</a></li>
</ul>
</div>
</div>
<div class="layui-body">
<!-- Content main area -->
<div style="padding: 15px;">Content main area</div>
</div>
<div class="layui-footer">
<!-- Bottom fixing area -->
© - Bottom fixing area
</div>
</div>
// Pay attention to Lu Jin <script src="~/layui-v2.2.5/layui-v2.2.5/layui/"></script>
<script>
//JavaScript code area (['element', 'jquery'], function () {
var element = , $ = ;
$(".menu_three").on("click", function () {
$(this).next().toggle();
$.each($(this).parent().siblings(), function (i, e) {
$(e).find("ol").hide();;
});
})
$("ol").on("click", "li a", function () {
$.each($(this).parent().siblings(), function (i, e) {
$(e).find("a").removeClass('three_this')
});
$(this).addClass('three_this'); // Add the style of the current element })
});
</script>
</body>
</html>
The above is all the content of this article. I hope it will be helpful to everyone's study and I hope everyone will support me more.