jQuery code to implement three-level menu

jQuery code to implement three-level menu_jquery

WBOY

Release： 2016-05-16 09:00:28

Original

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last week i took over a new website construction job, which required jquery code to implement a three-level menu. in fact, it is not difficult at all. the editor will share the code with you for your reference.

let me show you the renderings first. if you feel good about it, please refer to the implementation code.

html code:

<body> 
<div class="navmenu"> 
<ul> 
<li><a href="#">首页</a> 
<ul> 
<li><a href="#">javascript+</a> 
<ul> 
<li><a href="#">三角函数</a></li> 
<li><a href="#">矩形</a></li> 
</ul> 
</li> 
<li><a href="#">语文</a> 
<ul> 
<li><a href="#">唐诗</a></li> 
<li><a href="#">宋词</a></li> 
</ul> 
</li> 
<li><a href="#">英语</a></li> 
</ul> 
</li> 
<li><a href="#">课程大厅</a></li> 
<li><a href="#">学习中心+</a> 
<ul> 
<li><a href="#">javascript+</a> 
<ul> 
<li><a href="#">三角函数</a></li> 
<li><a href="#">矩形</a></li> 
</ul> 
</li> 
<li><a href="#">语文</a> 
<ul> 
<li><a href="#">三角函数</a></li> 
<li><a href="#">矩形</a></li> 
</ul> 
</li> 
<li><a href="#">英语</a></li> 
</ul> 
</li> 
<li><a href="#">帮助</a></li> 
</ul> 
</div> 
</body>

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js code:

<script type="text/javascript" src="js/jquery-1.12.3.min.js"></script> 
<script type="text/javascript"> 
$(function(){ 
$("li").has("ul").mouseover(function(){ 
$(this).children("ul").css("display","block"); 
$(this).css("backgroundcolor","#0066ff"); 
}).mouseout(function () { 
$(this).children("ul").css("display","none"); 
$(this).css("backgroundcolor","#eee"); 
}) 
}) 
</script>

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css code:

*{ 
padding:0; 
margin:0; 
} 
/*一级菜单*/ 
.navMenu { 
width:570px; 
margin:0 auto; 
} 
.navMenu ul li{ 
float: left; 
position: relative; 
} 
li{ 
list-style: none; 
background-color: #eee; 
width: 140px; 
height: 40px; 
text-align: center; 
margin-right: 2px; 
margin-bottom: 2px; 
} 
ul li a{ 
line-height: 40px; 
text-align: center; 
font-size: 20px; 
color: #000; 
text-decoration: none; 
display: block; 
padding:0 10px; 
} 
/*二级菜单*/ 
.navMenu ul li ul { 
display: none; 
position:absolute; 
left: 0; 
top:0; 
margin-top:42px; 
} 
.navMenu ul li ul li{ 
float:none; 
} 
/*三级菜单*/ 
.navMenu ul li ul li ul{ 
display: none; 
left:140px; 
top:-42px; 
}

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the above content is the jquery code to implement a three-level menu introduced by the editor. i hope it will be helpful to you!