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css下拉菜单汇总案例

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css下拉菜单汇总案例1.基础的下拉菜单将鼠标移到元素上时出现的下拉框。效果如下：代码如下：<!DOCTYPEhtml><htmllang=”en”><head><metacharset=”UTF-8″><metahttp-equiv=”X-UA-Compatible”content=”IE=edge”><metaname=”viewport”content=”width=device-width

1.基础的下拉菜单

将鼠标移到元素上时出现的下拉框。效果如下：

css下拉菜单汇总案例

代码如下：

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <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;
            z-index: 1;
        }
        
        .dropdown:hover .dropdown-content {
            display: block;
        }
    </style>
</head>

<body>

    <h1>可悬停的下拉菜单</h1>

    <p>请把鼠标移到文本上，已查看下拉内容。</p>

    <div class="dropdown">
        <span>把鼠标移到我上面</span>
        <div class="dropdown-content">
            <p>Hello World!</p>
        </div>
    </div>

</body>

</html>

2.下拉式菜单

将鼠标移到元素上时出现的下拉菜单。效果如下：

css下拉菜单汇总案例

 代码如下：

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        .dropbtn {
            background-color: #4CAF50;
            color: white;
            padding: 16px;
            font-size: 16px;
            border: none;
            cursor: pointer;
        }
        
        .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);
            z-index: 1;
        }
        
        .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;
        }
        
        .dropdown:hover .dropbtn {
            background-color: #3e8e41;
        }
    </style>
</head>

<body>

    <h1>下拉菜单</h1>

    <p>请把鼠标移到按钮上，以打开下拉菜单。</p>

    <div class="dropdown">
        <button class="dropbtn">Dropdown</button>
        <div class="dropdown-content">
            <a href="#">Link 1</a>
            <a href="#">Link 2</a>
            <a href="#">Link 3</a>
        </div>
    </div>

</body>

</html>

3.对齐的下拉菜单

下拉菜单左对齐和右对齐，如图所示：

css下拉菜单汇总案例css下拉菜单汇总案例

 代码如下：

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        .dropbtn {
            background-color: #4CAF50;
            color: white;
            padding: 16px;
            font-size: 16px;
            border: none;
            cursor: pointer;
        }
        
        .dropdown {
            position: relative;
            display: inline-block;
        }
        
        .dropdown-content {
            display: none;
            position: absolute;
            right: 0;
            background-color: #f9f9f9;
            min-width: 160px;
            box-shadow: 0px 8px 16px 0px rgba(0, 0, 0, 0.2);
            z-index: 1;
        }
        
        .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;
        }
        
        .dropdown:hover .dropbtn {
            background-color: #3e8e41;
        }
    </style>
</head>

<body>
    <p>通过 left 和 right 属性，决定下拉内容是左到右还是右到左。</p>
    <div class="dropdown" style="float:left;">
        <button class="dropbtn">Left</button>
        <div class="dropdown-content" style="left:0;">
            <a href="#">Link 1</a>
            <a href="#">Link 2</a>
            <a href="#">Link 3</a>
        </div>
    </div>
    <div class="dropdown" style="float:right;">
        <button class="dropbtn">Right</button>
        <div class="dropdown-content">
            <a href="#">Link 1</a>
            <a href="#">Link 2</a>
            <a href="#">Link 3</a>
        </div>
    </div>
</body>

</html>

 4.下拉图片

鼠标经过显示下拉图片

 css下拉菜单汇总案例

 代码如下：

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <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);
            z-index: 1;
        }
        
        .dropdown:hover .dropdown-content {
            display: block;
        }
        
        .desc {
            padding: 15px;
            text-align: center;
        }
    </style>
</head>

<body>
    <h1>下拉图片</h1>
    <p>请把鼠标移动到图像上，以打开下拉内容。</p>
    <div class="dropdown">
        <img src="../../bootstrap-4.6.0-dist/img/tp-detail-advantage1.jpg" alt="Coffee" width="100">
        <div class="dropdown-content">
            <img src="../../bootstrap-4.6.0-dist/img/tp-detail-advantage1.jpg" alt="Coffee" width="300" height="200">
            <div class="desc">下拉图片</div>
        </div>
    </div>
</body>

</html>

 

5.下拉式导航

在导航栏中添加下拉菜单，效果如下：

css下拉菜单汇总案例

代码如下：

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</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: red;
        }
        
        li.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);
            z-index: 1;
        }
        
        .dropdown-content a {
            color: black;
            padding: 12px 16px;
            text-decoration: none;
            display: block;
            text-align: left;
        }
        
        .dropdown-content a:hover {
            background-color: #f1f1f1;
        }
        
        .dropdown:hover .dropdown-content {
            display: block;
        }
    </style>
</head>

<body>
    <ul>
        <li><a href="#home">Home</a></li>
        <li><a href="#news">News</a></li>
        <li class="dropdown">
            <a href="javascript:void(0)" class="dropbtn">Dropdown</a>
            <div class="dropdown-content">
                <a href="#">Link 1</a>
                <a href="#">Link 2</a>
                <a href="#">Link 3</a>
            </div>
        </li>
    </ul>
    <p>请悬停到 "Dropdown" 链接上，以查看下拉菜单。</p>
</body>

</html>

 

 

 

今天的文章css下拉菜单汇总案例分享到此就结束了，感谢您的阅读。

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