abstract：<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>Document</title> <style>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
ul{
list-style: none;
}
.nav>li{
float: left;
}
ul a{
display: block;
text-decoration: none;
width: 100px;
height: 50px;
text-align: center;
line-height: 50px;
color: white;
background-color: #2f3e45;
}
.nav>li:first-child a{
border-radius: 10px 0 0 10px;
}
.nav>li:last-child a{
border-radius: 0 10px 10px 0;
}
.drop-down{
/*position: relative;*/
}
.drop-down-content{
padding: 0;
display: none;
/*position: absolute;*/
}
h3{
font-size: 30px;
clear: both;
}
.drop-down-content li:hover a{
background-color:red;
}
.nav .drop-down:hover .drop-down-content{
display: block;
}
</style>
</head>
<body>
<ul>
<li><a href="#">下拉菜單</a></li>
<li><a href="#">下拉菜單</a>
<ul>
<li><a href="#">我是1</a></li>
<li><a href="#">我是2</a></li>
<li><a href="#">我是3</a></li>
</ul>
</li>
<li><a href="#">下拉菜單</a></li>
<li><a href="#">下拉菜單</a></li>
<li><a href="#">下拉菜單</a></li>
</ul>
<h3>我是測試文字</h3>
</body>
</html>
Correcting teacher：查無此人Correction time：2019-07-02 13:13:02
Teacher's summary：完成的不錯(cuò)，常用的css樣式可以寫到公用文件里，每個(gè)項(xiàng)目都可以加載這一個(gè)公用文件。繼續(xù)加油。