abstract：<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"/> <title>00000</title&
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8"/>
<title>00000</title>
<style>
* {
margin: 0;
padding: 0;
}
body {
font-size: 14px;
}
img {
border: 0;
}
a {
color: #fff;
text-decoration: none;
outline: none;
}
ul, li {
list-style: none;
}
.head-nav {
width: 100%;
height: 60px;
background: #007130;
}
.head-nav-con {
width: 1200px;
height: 60px;
margin: auto;
}
.head-nav-con ul li {
width: 170px;
float: left;
font-size: 20px;
text-align: center;
}
.head-nav-con ul a {
display: block;
text-decoration: none;
text-align: center;
line-height: 60px;
color: white;
}
.head-nav-con .drop-down {
position: relative;
}
.head-nav-con .drop-down-content {
padding: 0;
position: absolute;
z-index: 1;
background: #007130;
}
.head-nav-con .drop-down-2 {
position: relative;
}
.head-nav-con .drop-down-content-2 {
padding: 0;
position: absolute;
z-index: 1;
background-color: #007130;
right: -170px;
top: 0;
}
.head-nav-con .drop-down-content-2 > li {
float: none;
background-color: #007130;
}
</style>
<script type="text/javascript" src="static/jQuery/jquery-3.3.1.js"></script>
<script type="text/javascript">
$(document).ready(function () {
$('.drop-down-content').hide();
$('.drop-down-content-2').hide();
$('.drop-down').mousemove(function () {
$(this).find('.drop-down-content').slideDown(600,).css('color','yellow');
});
$('.drop-down').mouseleave(function () {
$(this).find('.drop-down-content').slideUp(600,);
});
$('.drop-down-2').mousemove(function () {
$('.drop-down-content-2').fadeIn(300);
});
$('.drop-down-2').mouseleave(function () {
$('.drop-down-content-2').fadeOut(600);
});
});
</script>
</head>
<body>
<div class="main">
<!--头部-->
<div class="header">
<div class="head-nav">
<div class="head-nav-con clearFloat">
<ul> <!--一级菜单-->
<li><a href="#">首页</a></li>
<li><a href="#">一级菜单</a></li>
<li class="drop-down"><a href="#">二级菜单</a>
<ul class="drop-down-content"> <!--二级菜单-->
<li><a href="#">二级菜单</a></li>
<li><a href="#">二级菜单</a></li>
<li><a href="#">二级菜单</a></li>
<li><a href="#">二级菜单</a></li>
</ul>
</li>
<li class="drop-down"><a href="#">二级菜单</a>
<ul class="drop-down-content">
<li class="drop-down-2"><a href="#">三级菜单→</a>
<ul class="drop-down-content-2"> <!--三级菜单-->
<li><a href="#">三级菜单</a></li>
<li><a href="#">三级菜单</a></li>
<li><a href="#">三级菜单</a></li>
</ul>
</li>
<li class=""><a href="#">二级菜单</a></li>
<li class=""><a href="#">二级菜单</a></li>
<li class=""><a href="#">二级菜单</a></li>
<li class=""><a href="#">二级菜单</a></li>
</ul>
</li>
<li><a href="#">一级菜单</a></li>
<li><a href="#">一级菜单</a></li>
<li><a href="#">一级菜单</a></li>
</ul>
</div>
</div>
</div>
</div>
</body>
</html>
Correcting teacher：天蓬老师Correction time：2019-03-30 10:45:43
Teacher's summary：这类操作, 是一定要使用javascript来完成的, 还好, 现在有大量的前端框架将这类常用组件,进行封装