abstract：<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>jqmenu</title> <script type="text/javascript" src="jq
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>jqmenu</title>
<script type="text/javascript" src="jquery-3.3.1.min.js"></script>
<style type="text/css" media="screen">
*{margin: 0px;padding: 0px;}
li{list-style: none;float: left;}
a {text-decoration: none; color: #fff;}
div.menu {
width: 606px;
height: 40px;
background: red;
margin: 30px auto;
position: relative;
}
.one li {
border-right: 1px solid #fff;position: relative;
}
.one li a{
display: block;
width: 100px;
height: 40px;
line-height: 40px;
text-align: center;
}
.one li a:hover {
background: #ccc;
}
ul.two {
position: absolute;
top:45px;
}
.two li {
position: relative;
top:0px;
left:0px;
background: blue;
}
ul.three {
position: absolute;
left: 100px;
top: 0px;
}
.block{
width: 100px;
border:2px solid pink;
position: absolute;
top:40px;
left: 0px;
z-index: -1;
border-radius: 50px;
}
</style>
<script type="text/javascript">
$(document).ready(function(){
$(".two").hide()
$(".three").hide()
$(".one>li").mouseover(function() {
$(this).find(".two").slideDown(300, function() {
$(".two>li").css("zIdex","99")
});
});
$(".one>li").mouseleave(function() {
$(this).find(".two").slideUp(100, function() {
});
});
$(".two>li").mouseover(function() {
$(this).find(".three").slideDown(300, function() {
$(".three>li").css("zIdex","99")
});
});
$(".two>li").mouseleave(function() {
$(this).find(".three").slideUp(100, function() {
});
});
})
$(function(){
$("li[name]").hover(function() {
$x = parseInt($(this).attr("name")) * 100 + parseInt($(this).attr("name"));
$(".block").stop().animate({left:$x+"px"},100);
}, function() {
$(".block").stop().animate({left:0+"px"},100);
});
})
</script>
</head>
<body>
<div class="menu">
<ul class="one">
<li name="0"><a href="#">首页</a>
<ul class="two">
<li><a href="#">php</a></li>
<li><a href="#">js</a></li>
<li><a href="#">jquery</a>
</li>
</ul>
<li name="1"><a href="#">linux</a>
<ul class="two">
<li><a href="#">php</a></li>
<li><a href="#">js</a></li>
<li><a href="#">jquery</a>
<ul class="three">
<li><a href="#">php</a></li>
<li><a href="#">js</a></li>
<li><a href="#">jquery</a>
</li>
<li><a href="#">mysql</a></li>
</ul>
</li>
<li><a href="#">mysql</a></li>
</ul>
</li>
<li name="2"><a href="#">新闻</a></li>
<li name="3"><a href="#">娱乐</a></li>
<li name="4"><a href="#">军事</a></li>
<li name="5"><a href="#">关于我们</a></li>
</ul>
<div class="block"></div>
</div>
</body>
</html>
Correcting teacher：天蓬老师Correction time：2019-03-28 17:17:44
Teacher's summary：$(".block").stop().animate({left:0+"px"},100); 自定义动画, 参数应该有个注释好一些
