css实现下拉框效果

最新推荐文章于 2025-04-26 10:29:44 发布

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最新推荐文章于 2025-04-26 10:29:44 发布

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文章标签： css 前端 css3

本文链接：https://blog.youkuaiyun.com/weixin_48122970/article/details/132393986

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效果展示：

代码：

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <link rel="shortcut icon" href="favicon.ico" type="image/x-icon">
    <style>
        *{
            padding: 0;
            margin: 0;
            box-sizing: border-box;
        }
        body{
            background: #e7e5e5;
        }
        .card{
            margin: 50px auto;
            width: 600px;
            height: 250px;
            background: #ffffff;
            padding: 30px;
            display: flex;
            overflow: hidden;

        }
        .column{
           
            height: 100px;
            width: 100%;
            
            
        }

        li{
            list-style: none;
            margin-top: 10px;
            margin-right: 20px;
            font-size: 19px;
        }
        a{
            text-decoration: none;
            color: #000;
        }
        ul{
            display: flex;
            
        }
        
        li:hover{
            border-bottom: 2px solid skyblue;
            
        }
        .down{
            position: relative;
        }
        .down .box{
            position: absolute;
            top: 40px;
            left: -70px;
            height: 100px;
            width: 200px;
            background: rgb(163, 161, 161);
            transform: translateY(-140px);
            opacity: 0;
            transition: all 1s;
            
            
        }

        .down:hover .box{
            transform: translateY(0);
            opacity: 1;
        }
        .down .box h4{
            font-weight: normal;
            text-align: center;
            vertical-align: middle;
            margin-bottom: 5px;
            color: white;
        }

    </style>
</head>
<body>
    <div class="card">
        <div class="column">
            <ul>
                <li><a href="#">首页</a></li>
                <li><a href="#" class="down">课程
                    <div class="box">
                        <h4>语文</h4>
                        <h4>数学</h4></h4>
                        <h4>英语</h4>
                    </div>
                </a></li>
                <li><a href="#">职业规划</a></li>
            </ul>
        </div>

    </div>
</body>
</html>