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html - Bootstrap 导航栏行为

转载 作者：太空宇宙 更新时间：2023-11-04 01:30:22 25 4
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我一直在尝试使用 bootstrap 的导航栏，但它似乎做错了什么，导航栏看起来像这样(即使在宽屏幕上)

Navbar

代码如下

<!doctype html>
<html lang="en">
<head>
    <title>Gerencial</title>

    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">

    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/css/bootstrap.min.css"
          integrity="sha384-PsH8R72JQ3SOdhVi3uxftmaW6Vc51MKb0q5P2rRUpPvrszuE4W1povHYgTpBfshb" crossorigin="anonymous">

    <script src="https://code.jquery.com/jquery-3.2.1.slim.min.js"
            integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN"
            crossorigin="anonymous"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.3/umd/popper.min.js"
            integrity="sha384-vFJXuSJphROIrBnz7yo7oB41mKfc8JzQZiCq4NCceLEaO4IHwicKwpJf9c9IpFgh"
            crossorigin="anonymous"></script>
    <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/js/bootstrap.min.js"
            integrity="sha384-alpBpkh1PFOepccYVYDB4do5UnbKysX5WZXm3XxPqe5iKTfUKjNkCk9SaVuEZflJ"
            crossorigin="anonymous"></script>
</head>
<body>
<div>
    <nav class="navbar navbar-toggleable-xs sticky-top navbar-dark bg-dark">
        <button class="navbar-toggler navbar-toggler-right" type="button" data-toggle="collapse"
                data-target="#navbarNavDropdown">
            <span class="navbar-toggler-icon"></span>
        </button>
        <a class="navbar-brand" href="#">Test</a>
        <div class="collapse navbar-collapse" id="navbarNavDropdown">
            <ul class="navbar-nav">
                <li class="nav-item active">
                    <a class="nav-link" href="#">Home <span class="sr-only">(current)</span></a>
                </li>
                <li class="nav-item">
                    <a class="nav-link" href="#">Features</a>
                </li>
                <li class="nav-item">
                    <a class="nav-link" href="#">Pricing</a>
                </li>
                <li class="nav-item dropdown">
                    <a class="nav-link dropdown-toggle" href="http://example.com" id="navbarDropdownMenuLink"
                       data-toggle="dropdown">
                        Dropdown link
                    </a>
                    <div class="dropdown-menu">
                        <a class="dropdown-item" href="#">Action</a>
                        <a class="dropdown-item" href="#">Another action</a>
                        <a class="dropdown-item" href="#">Something else here</a>
                    </div>
                </li>
            </ul>
        </div>
    </nav>

</div>

<p>Test page</p>
</body>
</html>

有趣的是我在 bootstrap 文档上使用了完全相同的示例代码，它应该看起来像这样

Proper navbar

我确实更改了右侧的颜色和文本，但除此之外，一切都差不多，对发生的事情有什么建议吗？

最佳答案

您忘记添加 navbar-expand-sm 类(或 -md 或 -lg，具体取决于您要定位的断点)

Bootstrap :https://www.bootply.com/RVELYbOueA

HTML:

<nav class="navbar navbar-toggleable-xs navbar-expand-sm sticky-top navbar-dark bg-dark">
    <button class="navbar-toggler navbar-toggler-right" type="button" data-toggle="collapse" data-target="#navbarNavDropdown">
        <span class="navbar-toggler-icon"></span>
    </button>
    <a class="navbar-brand" href="#">Test</a>
    <div class="collapse navbar-collapse" id="navbarNavDropdown">
        <ul class="navbar-nav">
            <li class="nav-item active">
                <a class="nav-link" href="#">Home <span class="sr-only">(current)</span></a>
            </li>
            <li class="nav-item">
                <a class="nav-link" href="#">Features</a>
            </li>
            <li class="nav-item">
                <a class="nav-link" href="#">Pricing</a>
            </li>
            <li class="nav-item dropdown">
                <a class="nav-link dropdown-toggle" href="http://example.com" id="navbarDropdownMenuLink" data-toggle="dropdown">
                    Dropdown link
                </a>
                <div class="dropdown-menu">
                    <a class="dropdown-item" href="#">Action</a>
                    <a class="dropdown-item" href="#">Another action</a>
                    <a class="dropdown-item" href="#">Something else here</a>
                </div>
            </li>
        </ul>
    </div>
</nav>

关于html - Bootstrap 导航栏行为，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/47243262/

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