Question

我无法让导航栏工作。我从w3schools获得了导航条形码。但所有发生的事情都是它会显示导航栏，但是没有应用任何css，它看起来非常错误。这是我的代码

<!DOCTYPE html>
<html>
   <head>
      <meta charset="UTF-8">
      <meta name="viewport" content="width=device-width, initial-scale=1">
      <title>Html Editor 0.1</title>
  <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta/css/bootstrap.min.css" integrity="sha384-/Y6pD6FV/Vv2HJnA6t+vslU6fwYXjCFtcEpHbNJ0lyAFsXTsjBbfaDjzALeQsN6M" crossorigin="anonymous">
      <link rel="stylesheet" href="meineStyles.css"/>
   </head>
   <body>

<nav class="navbar navbar-inverse navbar-fixed-top">
  <div class="container-fluid">
    <div class="navbar-header">
      <a class="navbar-brand" href="#">WebSiteName</a>
    </div>
    <ul class="nav navbar-nav">
      <li class="active"><a href="#">Home</a></li>
      <li class="dropdown"><a class="dropdown-toggle" data-toggle="dropdown" href="#">Page 1 <span class="caret"></span></a>
        <ul class="dropdown-menu">
          <li><a href="#">Page 1-1</a></li>
          <li><a href="#">Page 1-2</a></li>
          <li><a href="#">Page 1-3</a></li>
        </ul>
      </li>
      <li><a href="#">Page 2</a></li>
      <li><a href="#">Page 3</a></li>
    </ul>
  </div>
</nav>
      <br>
      <div class="container jumbotron shadowdiv">
         <form id ="kekform" >
            <div class="row">
               <div class="col-md-6">
                  <textarea rows="4" cols="50" class="form-control" name="comment" form="kekform" id="textarea1" 
                 onkeyup="showUserJquery(this.value)"></textarea>
               </div>
               <div class="col-md-6" id="divfortext">
                  <div id="eindiv" style="vertical-align:top"><b id="test"></b></div>
               </div>
            </div>
            <table>
               <tr>
                  <td>
                  </td>
                  <td >
                  </td>
               </tr>
               <tr>
                  <td>  
                     <button onclick="changeColor()" type="button" style="color: red"  >Farbe ändern</button>
                  </td>
                  <td>
                     <input type="radio" form="kekform" value="htmlno" name="htmlenable"   checked="checked" id="htmlno">
                     <label for="htmlno">No HTML</label>
                  </td>
               </tr>
               <tr>
                  <td>
                  </td>
                  <td>
                     <input type="radio" form="kekform" value="htmlyes" name="htmlenable" id="htmlyes">
                     <label for="htmlyes">Yes HTML</label>
                  </td>
               </tr>
            </table>
         </form>
         <br> <br>
         <br>
         <br>
      </div>


   <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
   <script src="meineScripte.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.11.0/umd/popper.min.js" integrity="sha384-b/U6ypiBEHpOf/4+1nzFpr53nxSS+GLCkfwBdFNTxtclqqenISfwAzpKaMNFNmj4" crossorigin="anonymous"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta/js/bootstrap.min.js" integrity="sha384-h0AbiXch4ZDo7tp9hKZ4TsHbi047NrKGLO3SEJAg45jXxnGIfYzk4Si90RDIqNm1" crossorigin="anonymous"></script> 

   </body>
</html>

这是一个jsfiddle，meineScripte.js和meineStyles.css在相应的部分。 https://jsfiddle.net/m7kq6p9q/ 是的，我已经尝试过没有我自己的.js和css，但它仍然无法正常工作。如果正确加载了引导程序文件，我还使用chrome的开发人员工具进行了检查。

您可以清楚地看到导航栏看起来并不像它应该的那样。这是我从以下地方获得的：https://www.w3schools.com/bootstrap/bootstrap_navbar.asp

Answer 1

使用提供的文档here，我已经能够为您创建一个工作虚拟人。

注意： W3Schools＆＃39; Bootstrap教程基于版本3.XX，您使用的是Bootstrap 4.0.0，因此可能存在一些兼容性问题，因此您宁愿使用Bootstrap的文档而不是W3Schools。

<强> HTML

<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>

直播示例

JSFiddle

bootstrap导航栏显示没有CSS

1 个答案: