abstract：<!DOCTYPE html><html><head><title>php.cn</title><meta charset="utf-8"><style>.dropdown { position: relative; display: inline-block;}.dro
<!DOCTYPE html>
<html>
<head>
<title>php.cn
</title>
<meta charset="utf-8">
<style>
.dropdown {
position: relative;
display: inline-block;
}
.dropdown-content {
display: none;
position: absolute;
background-color: #f9f9f9;
min-width: 160px;
box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
padding: 12px 16px;
}
.dropdown:hover .dropdown-content {
display: block;
}
</style>
</head>
<body>
<h2>鼠标移动后出现下拉菜单</h2>
<p>将鼠标移动到指定元素上就能看到下拉菜单。</p>
<div class="dropdown">
<span>鼠标移动到我这！</span>
<div class="dropdown-content">
<p>聚焦下拉</p>
<p>www.php.cn</p>
</div>
</div>
</body>
</html>
Correcting teacher：查无此人Correction time：2019-06-10 09:09:44
Teacher's summary：完成的不错，常用的css样式可以写到公用文件里，每个项目都可以加载这一个公用文件。继续加油。