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- <!DOCTYPE html>
- <html>
- <head>
- <meta charset="utf-8">
- <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>
-
- <ul>
- <li><a class="active" href="#home">主页</a></li>
- <li><a href="#news">新闻</a></li>
- <div class="dropdown">
- <a href="#" class="dropbtn">下拉菜单</a>
- <div class="dropdown-content">
- <a href="#">链接 1</a>
- <a href="#">链接 2</a>
- <a href="#">链接 3</a>
- </div>
- </div>
- </ul>
-
- </body>
- </html>
.dropdown-content 类中是实际的下拉菜单。默认是隐藏的,在鼠标移动到指定元素后会显示。
其中,display由none变成block(hover)
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