Boostrap 4导航栏不起作用 | 4导航栏不起作用

本文介绍了Boostrap 4导航栏不起作用的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

我是Bootstrap的新手.我安装了Bootstrap 4，并直接从Bootstrap 4 Navbar示例代码中获取了Navbar代码，但是该代码不显示导航-它仅显示菜单图标.有人可以告诉我我在做什么错吗?

I'm new to Bootstrap. I installed Bootstrap 4 and took the Navbar code directly from Bootstrap 4 Navbar example code, but the code does not show the navigation - it only shows the menu icon. Could someone tell me what I'm doing wrong here please?

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Example</title>
    <link rel="stylesheet" type="text/css" href="css/bootstrap.css">
    <link rel="stylesheet" type="text/css" href="css/bootstrap-grid.css">
    <link rel="stylesheet" type="text/css" href="js/bootstrap.js">
</head>
<body>
<div class="container">
            <nav class="navbar navbar-toggleable-md navbar-light bg-faded">
                <button class="navbar-toggler navbar-toggler-right" type="button" data-toggle="collapse" data-target="#navbarNavAltMarkup" aria-controls="navbarNavAltMarkup" aria-expanded="false" aria-label="Toggle navigation">
                    <span class="navbar-toggler-icon"></span>
                </button>
                <a class="navbar-brand" href="#">Navbar</a>
                <div class="collapse navbar-collapse" id="navbarNavAltMarkup">
                    <div class="navbar-nav">
                        <a class="nav-item nav-link active" href="#">Home <span class="sr-only">(current)</span></a>
                        <a class="nav-item nav-link" href="#">Features</a>
                        <a class="nav-item nav-link" href="#">Pricing</a>
                        <a class="nav-item nav-link disabled" href="#">Disabled</a>
                    </div>
                </div>
            </nav>
 </div>
</body>
</html>

推荐答案

Bootstrap V4 Beta导航栏与Bootstrap V4 Alpha导航栏不同.

The Bootstrap V4 Beta navbar is different to the Bootstrap V4 Alpha navbar.

这是从 https://getbootstrap.com/docs提取的Bootstrap v4 Beta导航栏示例/4.0/components/navbar/

<nav class="navbar navbar-expand-lg navbar-light bg-light">
  <a class="navbar-brand" href="#">Navbar</a>
  <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
    <span class="navbar-toggler-icon"></span>
  </button>

  <div class="collapse navbar-collapse" id="navbarSupportedContent">
    <ul class="navbar-nav mr-auto">
      <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="#">Link</a>
      </li>
      <li class="nav-item">
        <a class="nav-link disabled" href="#">Disabled</a>
      </li>
    </ul>
    <form class="form-inline my-2 my-lg-0">
      <input class="form-control mr-sm-2" type="text" placeholder="Search" aria-label="Search">
      <button class="btn btn-outline-success my-2 my-sm-0" type="submit">Search</button>
    </form>
  </div>
</nav>

这篇关于Boostrap 4导航栏不起作用的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！