Bootstrap 导航栏不工作我的代码有问题吗？

Question

这是我的代码：

<nav class="navbar navbar-expand-md navbar-dark bg-dark sticky-top">

<div class="container-fluid">

    <a class="navbar-brand" href="#"> <img src="https://i.stack.imgur.com/5XeYV.png" width="225" height="245"> </a>

    <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarResponsive">

    </Button>

</div>

</nav>

这就是显示内容： 单击此处查看显示内容

帮助将不胜感激，谢谢

Answer 1

导航栏品牌形象必须调整大小，结构应如下所示<nav class="navbar navbar-expand-lg navbar-dark bg-dark">&nbsp; &nbsp; &nbsp; &nbsp; <a class="navbar-brand" href="#">&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <img src="https://getbootstrap.com/docs/4.4/assets/brand/bootstrap-solid.svg" width="30" height="30"&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; class="d-inline-block align-top" alt="">&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Bootstrap&nbsp; &nbsp; &nbsp; &nbsp; </a>&nbsp; &nbsp; &nbsp; &nbsp; <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent"&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <span class="navbar-toggler-icon"></span>&nbsp; &nbsp; &nbsp; &nbsp; </button>&nbsp; &nbsp; &nbsp; &nbsp; <div class="collapse navbar-collapse" id="navbarSupportedContent">&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <ul class="navbar-nav mr-auto">&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <li class="nav-item active">&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <a class="nav-link" href="#">Home <span class="sr-only">(current)</span></a>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; </li>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <li class="nav-item">&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <a class="nav-link" href="#">Link</a>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; </li>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <li class="nav-item dropdown">&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <a class="nav-link dropdown-toggle" href="#" id="navbarDropdown" role="button"&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Dropdown&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; </a>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <div class="dropdown-menu" aria-labelledby="navbarDropdown">&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <a class="dropdown-item" href="#">Action</a>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <a class="dropdown-item" href="#">Another action</a>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <div class="dropdown-divider"></div>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <a class="dropdown-item" href="#">Something else here</a>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; </div>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; </li>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <li class="nav-item">&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <a class="nav-link disabled" href="#" tabindex="-1" aria-disabled="true">Disabled</a>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; </li>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; </ul>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <form class="form-inline my-2 my-lg-0">&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <input class="form-control mr-sm-2" type="search" placeholder="Search" aria-label="Search">&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <button class="btn btn-outline-success my-2 my-sm-0" type="submit">Search</button>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; </form>&nbsp; &nbsp; &nbsp; &nbsp; </div>&nbsp; &nbsp; </nav>