jQuery three-level drop-down list navigation menu code sharing

jQuery three-level drop-down list navigation menu code sharing_jquery

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Release： 2016-05-16 15:42:43

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The example in this article describes the jQuery three-level drop-down list navigation menu. Share it with everyone for your reference. The details are as follows:
The jQuery three-level drop-down list navigation menu is based on jquery-1.8.3.min.js and can be infinitely classified. It can intelligently determine whether there is a lower-level menu. The mouse will display the lower-level menu after passing the last menu.
Operation effect diagram:

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The jQuery three-level drop-down list navigation menu code shared with you is as follows

<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>jQuery三级下拉列表导航菜单</title>

<script type="text/javascript" src="js/jquery-1.8.3.min.js"></script>

<style type="text/css">
*{margin: 0; padding: 0;}
body{ font-size: 12px; }
li{ list-style: none;}
ul.nav li{ width: 200px; text-align:center;}
ul.nav > li{ float: left; margin-right:10px;}
ul.nav li h3{height: 40px; line-height: 40px;}
ul.nav > li > h3{ background: #72a7ff;}
ul.nav > li > ul > li h3{ background: #ffd9d9;}
ul.nav > li h3:hover,.choice{ background: #ffc0c0!important;}
ul > li > ul{ display: none;}
ul > li.on > ul{ display: block;}
ul.nav li{ position: relative;}
ul.nav > li > ul > li ul{ position: absolute; top: 0; right: -200px;}
ul.nav span.sub{ position: absolute; display: block; right:10px; top: 0; width: 10px; height: 40px; background: url(images/arrows.png) no-repeat center center;}
</style>

<script type="text/javascript">
 $(document).ready(function() {
 $("ul.nav li").hover(function(){
  $(this).addClass("on");

 },
 function(){
  $(this).removeClass("on");

 })
 });

 $(document).ready(function() {
 $("ul.nav li").hover(function(){
  $(this).parent("ul").siblings("h3").addClass("choice");

 },
 function(){
  $(this).parent("ul").siblings("h3").removeClass("choice");
 })
 });

 $(document).ready(function() { 
  if ($("ul.nav li").find("ul") .html()!="") {
  $("ul.nav li").parent("ul").siblings("h3").append("<span class='sub'></span>");  
  }
 });
</script>


</head>
<body>
<ul class="nav">
 <li><h3>我的网站</h3>
 <ul>
 <li><h3>2级分类</h3>
  <ul>
  <li><h3>3级分类</h3>
  <ul>
  <li><h3>4级分类</h3>
   <ul>
   <li><h3>5级分类</h3></li>
   <li><h3>5级分类</h3></li>
   <li><h3>5级分类</h3></li>
   <li><h3>5级分类</h3></li>
   </ul>
  </li>
  <li><h3>4级分类</h3></li>
  <li><h3>4级分类</h3></li>
  <li><h3>4级分类</h3></li>
  </ul>
  </li>
  <li><h3>3级分类</h3></li>
  <li><h3>3级分类</h3></li>
  <li><h3>3级分类</h3></li>
  </ul>
 </li>
 <li><h3>2级分类</h3>
  <ul>
  <li><h3>3级分类</h3></li>
  <li><h3>3级分类</h3></li>
  <li><h3>3级分类</h3></li>
  <li><h3>3级分类</h3></li>
  </ul>
 </li>
 <li><h3>2级分类</h3>
  <ul>
  <li><h3>3级分类</h3></li>
  <li><h3>3级分类</h3></li>
  <li><h3>3级分类</h3></li>
  <li><h3>3级分类</h3></li>
  </ul>
 </li>
 <li><h3>2级分类</h3>
  <ul>
  <li><h3>3级分类</h3></li>
  <li><h3>3级分类</h3></li>
  <li><h3>3级分类</h3></li>
  <li><h3>3级分类</h3></li>
  </ul>
 </li>
 </ul>
 </li>
 <li><h3>我的网站</h3>
 <ul>
 <li><h3>2级分类</h3>
  <ul>
  <li><h3>3级分类</h3></li>
  <li><h3>3级分类</h3></li>
  <li><h3>3级分类</h3></li>
  <li><h3>3级分类</h3></li>
  </ul>
 </li>
 <li><h3>2级分类</h3>
  <ul>
  <li><h3>3级分类</h3></li>
  <li><h3>3级分类</h3></li>
  <li><h3>3级分类</h3></li>
  <li><h3>3级分类</h3></li>
  </ul>
 </li>
 <li><h3>2级分类</h3>
  <ul>
  <li><h3>3级分类</h3></li>
  <li><h3>3级分类</h3></li>
  <li><h3>3级分类</h3></li>
  <li><h3>3级分类</h3></li>
  </ul>
 </li>
 <li><h3>2级分类</h3>
  <ul>
  <li><h3>3级分类</h3></li>
  <li><h3>3级分类</h3></li>
  <li><h3>3级分类</h3></li>
  <li><h3>3级分类</h3></li>
  </ul>
 </li>
 </ul>
 </li>
 <li><h3>我的网站</h3>
 <ul>
 <li><h3>2级分类</h3>
  <ul>
  <li><h3>3级分类</h3></li>
  <li><h3>3级分类</h3></li>
  <li><h3>3级分类</h3></li>
  <li><h3>3级分类</h3></li>
  </ul>
 </li>
 <li><h3>2级分类</h3>
  <ul>
  <li><h3>3级分类</h3></li>
  <li><h3>3级分类</h3></li>
  <li><h3>3级分类</h3></li>
  <li><h3>3级分类</h3></li>
  </ul>
 </li>
 <li><h3>2级分类</h3>
  <ul>
  <li><h3>3级分类</h3></li>
  <li><h3>3级分类</h3></li>
  <li><h3>3级分类</h3></li>
  <li><h3>3级分类</h3></li>
  </ul>
 </li>
 <li><h3>2级分类</h3>
  <ul>
  <li><h3>3级分类</h3></li>
  <li><h3>3级分类</h3></li>
  <li><h3>3级分类</h3></li>
  <li><h3>3级分类</h3></li>
  </ul>
 </li>
 </ul>
 </li>
 <li><h3>我的网站</h3>
 <ul>
 <li><h3>2级分类</h3>
  <ul>
  <li><h3>3级分类</h3></li>
  <li><h3>3级分类</h3></li>
  <li><h3>3级分类</h3></li>
  <li><h3>3级分类</h3></li>
  </ul>
 </li>
 <li><h3>2级分类</h3>
  <ul>
  <li><h3>3级分类</h3></li>
  <li><h3>3级分类</h3></li>
  <li><h3>3级分类</h3></li>
  <li><h3>3级分类</h3></li>
  </ul>
 </li>
 <li><h3>2级分类</h3>
  <ul>
  <li><h3>3级分类</h3></li>
  <li><h3>3级分类</h3></li>
  <li><h3>3级分类</h3></li>
  <li><h3>3级分类</h3></li>
  </ul>
 </li>
 <li><h3>2级分类</h3>
  <ul>
  <li><h3>3级分类</h3></li>
  <li><h3>3级分类</h3></li>
  <li><h3>3级分类</h3></li>
  <li><h3>3级分类</h3></li>
  </ul>
 </li>
 </ul>
 </li>
</ul>

</body>
</html>

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The above is the jQuery three-level drop-down list navigation menu code shared with you. I hope you like it.