css 导航栏上的下拉菜单实例 - 自学教程(runoops.com)

<!DOCTYPE html>
<html>

<head>
    <meta charset="utf-8">
    <title>css 导航栏上的下拉菜单 实例 - 自学教程(runoops.com)</title>
    <style>
        ul {
            list-style-type: none;
            margin: 0;
            padding: 0;
            overflow: hidden;
            background-color: #333;
        }

li {
            float: left;
        }

li a,
        .dropbtn {
            display: inline-block;
            color: white;
            text-align: center;
            padding: 14px 16px;
            text-decoration: none;
        }

li a:hover,
        .dropdown:hover,
        .dropbtn {
            background-color: #111;
        }

.dropdown {
            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);
        }

.dropdown-content a {
            color: black;
            padding: 12px 16px;
            text-decoration: none;
            display: block;
        }

.dropdown-content a:hover {
            background-color: #f1f1f1
        }

.dropdown:hover .dropdown-content {
            display: block;
        }
    </style>
</head>

<body>

<h3>导航栏上的下拉菜单</h3>
    <p>鼠标移动到 "下拉菜单" 链接先显示下拉菜单。</p>

</body>

</html>