abstract:<!DOCTYPE html><html><head><meta charset="utf-8" /><title>Page Title</title><script src="https://code.jquery.com/jquery-3.1.1.min.js"><
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>Page Title</title>
<script src="https://code.jquery.com/jquery-3.1.1.min.js"></script>
<style type="text/css">
* {
margin: 0px;
padding: 0px;
}
.menu {
width: 800px;
height: 35px;
margin: 0px auto;
background: #000;
margin-top: 20px;
color: #fff;
border: 1px solid #ccc;
border-radius: 5px;
}
ul {
list-style: none;
}
ul li {
width: 100px;
height: 35px;
line-height: 35px;
text-align: center;
float: left;
border-right: 1px solid #ccc;
cursor: pointer;
}
.twobox li {
width: 100px;
height: 30px;
line-height: 30px;
background: #2D2D2D;
color: #A9A9A9;
font-size: 14px;
position: relative;
border: 0px;
}
.twobox li:hover {
background: #000;
color: #fff;
}
.three {
position: absolute;
top: 0px;
left: 100px;
}
.three li {
width: 99px;
height: 30px;
line-height: 30px;
border: 0;
}
</style>
</head>
<body>
<div class="menu">
<ul class="one">
<!-- 一级下拉菜单 one -->
<li>首 页</li>
<li>产 品
<ul class="twobox">
<!-- 二级下拉菜单 twobox-->
<li>产品1</li>
<li class="two">产品2
<ul class="three">
<!--三级下拉菜单 three-->
<li>产品1.1</li>
<li>产品1.2</li>
<li>产品1.3</li>
<li>产品1.4</li>
</ul>
</li>
<li class="two">产品3
<ul class="three">
<li>产品3.1</li>
<li>产品3.2</li>
<li>产品3.3</li>
<li>产品3.4</li>
</ul>
</li>
<li>产品4</li>
</ul>
</li>
<li>公司新闻
<ul class="twobox">
<li>公司新闻1</li>
<li class="two">公司新闻2
<ul class="three">
<li>公司新闻1.1</li>
<li>公司新闻1.2</li>
<li>公司新闻1.3</li>
</ul>
</li>
<li>公司新闻3</li>
<li>公司新闻4</li>
</ul>
</li>
<li>行业新闻</li>
<li>联系我们</li>
</ul>
</div>
</body>
</html>
<script>
$(function(){
$('.twobox').hide();
$('.three').hide();
$('.one>li').mouseover(function(){
$(this).find('.twobox').slideDown(500);
})
$('.one>li').mouseleave(function(){
$(this).find('.twobox').slideUp(500);
})
$('.two').mouseover(function(){
$(this).find('.three').slideDown(500);
})
$('.two').mouseleave(function(){
$(this).find('.three').slideUp(200);
})
})
</script>
Correcting teacher:灭绝师太Correction time:2019-01-24 14:52:10
Teacher's summary:jq获取元素,直接方便,语法上简洁很多继续加油~