abstract：<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>导航</title> &
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>导航</title>
<script src="https://code.jquery.com/jquery-3.3.1.min.js"></script>
<style type="text/css">
*{margin: 0px;padding: 0px;}
li{list-style: none;}
.ss{position: relative;}
/*.nav{width: 1200px;height: 36px;background-color: #333333;line-height: 36px;font-size: 14px;margin: 20px auto 0px;}
.nav>ul>li{float: left;margin-left: 18px;padding: 0 6px;}
.nav>ul>li>a{text-decoration: none;color: #fff;display: block;padding: 0 6px;border: 1px solid #333333;height: 34px;}
.nav>ul>li>a:hover{color: #2d8930;background-color: #fff;height: 34px;display: block;border: 1px solid #2d8930;padding: 0 6px;}*/
.nav{width: 1200px;height: 36px;background-color: #333333;line-height: 36px;font-size: 14px;margin: 20px auto 0px;}
.nav>ul>li{float: left;width: 82px;text-align: center;height: 34px;margin-left: 18px;}
.nav>ul>li>a{text-decoration: none;color: #fff;}
.nav>ul>li>a:hover{color: #2d8930;background-color: #fff;display: block;border: 1px solid #2d8930;height: 34px;}
.nav_b {width: 268px;border: 1px solid #2d8930;border-top: none;position: absolute;top:36px;}
.nav_b li{float: left;margin-left: 10px;}
.nav_b li a{display: inline-block;border:none;height: 34px;padding: 0px 10px;color: #333;font-size: 12px;}
.nav_b li a:hover{color: #2d8930;border:none;height: 34px;text-decoration:underline;font-size: 12px;}
</style>
<script type="text/javascript">
$(function(){
$(".nav_b").hide()
$(".nav>ul>li").mouseover(function(){
$(this).find('.nav_b').slideDown(500)
})
$(".nav>ul>li").mouseleave(function(){
$(this).find(".nav_b").slideUp(500)
})
})
</script>
</head>
<body>
<div class="nav">
<ul>
<li><a href="/">首页</a></li>
<li class="ss"><a href="aaa">矢量素材</a>
<ul class="nav_b">
<li><a href="/vector/classics/">矢量花纹</a></li>
<li><a href="/vector/classics/">经典实用</a></li>
<li><a href="/vector/festival/">矢量节日</a></li>
<li><a href="/vector/design/">广告设计</a></li>
<li><a href="/vector/chinese_style/">矢量中国</a></li>
<li><a href="/vector/icon/">矢量图标</a></li>
<li><a href="/vector/trend/">矢量潮流</a></li>
</ul>
</li>
<li><a href="#">PNG图标</a></li>
<li><a href="#">JS代码</a></li>
<li><a href="#">PSD素材</a></li>
<li><a href="#">图片素材</a></li>
<li><a href="#">网页素材</a></li>
<li><a href="#">用户体验</a></li>
<li><a href="#">设计分享</a></li>
</ul>
</div>
</body>
</html>
Correcting teacher：灭绝师太Correction time：2019-02-01 10:00:27
Teacher's summary：完成的不错,能把学到的知识点融入到案例中,继续保持!
