html - 当桌面上的页面大小为 "mobile"时，汉堡包下拉菜单不起作用

标签 html css twitter-bootstrap

当我将页面最小化为移动设备大小时，我的汉堡包按钮不起作用。其他一切似乎都正常运行，我已经多次检查代码并且它似乎是正确的。在这一点上，我不确定是我下面的脚本代码禁用了下拉菜单还是什么？

<!DOCTYPE html>
<html>
<head>
    <title>Image Gallery</title>
    <link rel="stylesheet" type="text/css" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
    <link rel="stylesheet" type="text/css" href="gallery.css">
</head>
<body>
    <nav class="navbar navbar-inverse navbar-fixed-top">
        <div class="container">
            <div class="navbar-header">
                <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" date-target="#bs-nav-demo" aria-expanded="false">
                    <span class="sr-only">Toggle navigation</span>
                    <span class="icon-bar"></span>
                    <span class="icon-bar"></span>
                    <span class="icon-bar"></span>
                </button>
                    <a href="#" class="navbar-brand"><span class="glyphicon glyphicon-picture" aria-hidden="true"></span> IMAGES</a>
            </div>
        <div class="collapse navbar-collapse" id="bs-nav-demo-1">
                <ul class="nav navbar-nav">
                    <li><a href="#">About</a></li>
                    <li><a href="#">Contact</a></li>
                </ul>
                <ul class="nav navbar-nav navbar-right">
                        <li><a href="#">Sign Up</a></li>
                    <li><a href="#">Login</a></li>
                </ul>
            </div>  
        </div>  
    </nav>

<div class="container">
    <div class="jumbotron">
        <h1><span class="fas fa-camera-retro"></span> The Image Gallery</h1>
        <p>Wonderful pictures at your disposal!</p>
    </div>

    <div class="row">
        <div class="col-lg-4 col-sm-6" >
            <div class="thumbnail">
                <img src="http://i.imgur.com/qK42fUu.jpg">
            </div>  
        </div>
        <div class="col-lg-4 col-sm-6">
            <div class="thumbnail">
                <img src="https://images.unsplash.com/photo-1435771112039-1e5b2bcad966?dpr=2&fit=crop&fm=jpg&h=825&q=50&w=1450">
            </div>  
        </div>
        <div class="col-lg-4 col-sm-6">
            <div class="thumbnail">
                <img src="https://images.unsplash.com/photo-1442406964439-e46ab8eff7c4?dpr=2&fit=crop&fm=jpg&h=825&q=50&w=1450">
            </div>  
        </div>
        <div class="col-lg-4 col-sm-6">
            <div class="thumbnail">
                <img src="https://images.unsplash.com/photo-1439524970634-649c37a69e5c?ixlib=rb-0.3.5&q=80&fm=jpg&crop=entropy&w=1450&h=825&fit=crop&s=bfda9916c885869b43b70738693428d9">
            </div>  
        </div>
        <div class="col-lg-4 col-sm-6">
            <div class="thumbnail">
                <img src="https://images.unsplash.com/photo-1444090542259-0af8fa96557e?dpr=2&fit=crop&fm=jpg&h=825&q=50&w=1450">
            </div>  
        </div>
        <div class="col-lg-4 col-sm-6">
            <div class="thumbnail">
                <img src="https://images.unsplash.com/photo-1434543177303-ef2cc7707e0d?dpr=2&fit=crop&fm=jpg&h=825&q=50&w=1450">
            </div>  
        </div>
        <div class="col-lg-4 col-sm-6">
            <div class="thumbnail">
                <img src="https://images.unsplash.com/photo-1436262513933-a0b06755c784?dpr=2&fit=crop&fm=jpg&h=825&q=50&w=1450">
            </div>  
        </div>
        <div class="col-lg-4 col-sm-6">
            <div class="thumbnail">
                <img src="https://images.unsplash.com/photo-1439396087961-98bc12c21176?dpr=2&fit=crop&fm=jpg&h=825&q=50&w=1450">
            </div>  
        </div>
        <div class="col-lg-4 col-sm-6">
            <div class="thumbnail">
                <img src="https://images.unsplash.com/photo-1439694458393-78ecf14da7f9?dpr=2&fit=crop&fm=jpg&h=825&q=50&w=1450">
            </div>  
        </div>
    </div>      
</div>  

<script defer src="https://use.fontawesome.com/releases/v5.0.6/js/all.js"></script>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.1/js/bootstrap.min.js"></script>
</body>
</html>

最佳答案

-> 请将以下代码更新为您现有的代码。

-> 按钮数据目标名称和折叠 ID 名称中的 ID 名称必须相同。

-> 也将 meta 标签添加到 head 标签中。

<!DOCTYPE html>
<html>
    <head>
        <meta charset="utf-8">
        <meta http-equiv="X-UA-Compatible" content="IE=edge">
        <meta name="viewport" content="width=device-width, initial-scale=1">
        <title>Image Gallery</title>
        <link rel="stylesheet" type="text/css" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
        <link rel="stylesheet" type="text/css" href="gallery.css">
    </head>
    <body>
        <nav class="navbar navbar-inverse navbar-fixed-top">
            <div class="container">
                <div class="navbar-header">
                    <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-nav-demo-1" aria-expanded="false">
                        <span class="sr-only">Toggle navigation</span>
                        <span class="icon-bar"></span>
                        <span class="icon-bar"></span>
                        <span class="icon-bar"></span>
                    </button>
                    <a href="#" class="navbar-brand"><span class="glyphicon glyphicon-picture" aria-hidden="true"></span> IMAGES</a>
                </div>
                <div class="collapse navbar-collapse" id="bs-nav-demo-1">
                    <ul class="nav navbar-nav">
                        <li><a href="#">About</a></li>
                        <li><a href="#">Contact</a></li>
                    </ul>
                    <ul class="nav navbar-nav navbar-right">
                        <li><a href="#">Sign Up</a></li>
                        <li><a href="#">Login</a></li>
                    </ul>
                </div>  
            </div>  
        </nav>

        <div class="container">
            <div class="jumbotron">
                <h1><span class="fas fa-camera-retro"></span> The Image Gallery</h1>
                <p>Wonderful pictures at your disposal!</p>
            </div>

            <div class="row">
                <div class="col-lg-4 col-sm-6" >
                    <div class="thumbnail">
                        <img src="http://i.imgur.com/qK42fUu.jpg">
                    </div>  
                </div>
                <div class="col-lg-4 col-sm-6">
                    <div class="thumbnail">
                        <img src="https://images.unsplash.com/photo-1435771112039-1e5b2bcad966?dpr=2&fit=crop&fm=jpg&h=825&q=50&w=1450">
                    </div>  
                </div>
                <div class="col-lg-4 col-sm-6">
                    <div class="thumbnail">
                        <img src="https://images.unsplash.com/photo-1442406964439-e46ab8eff7c4?dpr=2&fit=crop&fm=jpg&h=825&q=50&w=1450">
                    </div>  
                </div>
                <div class="col-lg-4 col-sm-6">
                    <div class="thumbnail">
                        <img src="https://images.unsplash.com/photo-1439524970634-649c37a69e5c?ixlib=rb-0.3.5&q=80&fm=jpg&crop=entropy&w=1450&h=825&fit=crop&s=bfda9916c885869b43b70738693428d9">
                    </div>  
                </div>
                <div class="col-lg-4 col-sm-6">
                    <div class="thumbnail">
                        <img src="https://images.unsplash.com/photo-1444090542259-0af8fa96557e?dpr=2&fit=crop&fm=jpg&h=825&q=50&w=1450">
                    </div>  
                </div>
                <div class="col-lg-4 col-sm-6">
                    <div class="thumbnail">
                        <img src="https://images.unsplash.com/photo-1434543177303-ef2cc7707e0d?dpr=2&fit=crop&fm=jpg&h=825&q=50&w=1450">
                    </div>  
                </div>
                <div class="col-lg-4 col-sm-6">
                    <div class="thumbnail">
                        <img src="https://images.unsplash.com/photo-1436262513933-a0b06755c784?dpr=2&fit=crop&fm=jpg&h=825&q=50&w=1450">
                    </div>  
                </div>
                <div class="col-lg-4 col-sm-6">
                    <div class="thumbnail">
                        <img src="https://images.unsplash.com/photo-1439396087961-98bc12c21176?dpr=2&fit=crop&fm=jpg&h=825&q=50&w=1450">
                    </div>  
                </div>
                <div class="col-lg-4 col-sm-6">
                    <div class="thumbnail">
                        <img src="https://images.unsplash.com/photo-1439694458393-78ecf14da7f9?dpr=2&fit=crop&fm=jpg&h=825&q=50&w=1450">
                    </div>  
                </div>
            </div>      
        </div>  

        <script defer src="https://use.fontawesome.com/releases/v5.0.6/js/all.js"></script>
        <script src="https://code.jquery.com/jquery-3.3.1.js"></script>
        <script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.1/js/bootstrap.min.js"></script>
    </body>
</html>

关于html - 当桌面上的页面大小为 "mobile"时，汉堡包下拉菜单不起作用，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/50899717/

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