css创建下拉不起作用

我正在使用CSS创建下拉菜单。我不知道为什么我的CSS不适用。我已经创建了用于渲染下拉列表的UL和LI元素。请参阅渲染时输出的屏幕截图。使用开发者工具。css创建下拉不起作用

下面是代码

CSS

ul 
{ 
    font-family: Arial, Verdana; 
    font-size: 14px; 
    margin: 0; 
    padding: 0; 
    list-style: none; 
} 

ul li ul li a 
{ 
    display: block; 
    position: relative; 
    float: left; 
} 

li ul 
{ 
    display: none; 
} 

ul li a 
{ 
    display: block; 
    text-decoration: none; 
    color: #ffffff; 
    border-top: 1px solid #ffffff; 
    padding: 5px 15px 5px 15px; 
    background: #2C5463; 
    margin-left: 1px; 
    white-space: nowrap; 
} 

ul li a:hover 
{ 
    background: #617F8A; 
} 
hideli li:hover ul 
{ 
    display: block; 
    position: absolute; 
} 

hideli li:hover li 
{ 
    float: none; 
    font-size: 11px; 
} 

li:hover a 
{ 
    background: #617F8A; 
} 

li:hover li a:hover 
{ 
    background: #95A9B1; 
}

HTML

<!DOCTYPE html> 

<html> 
<head> 

    <title>@ViewBag.Title</title> 

    <meta name="viewport" content="width=device-width, initial-scale=1"> 

    <link href="@Url.Content("~/Content/Site.css")" rel="stylesheet" type="text/css" /> 
    <link href="@Url.Content("~/Content/kendo/2017.1.223/kendo.common-bootstrap.min.css")" rel="stylesheet" type="text/css" /> 
    <link href="@Url.Content("~/Content/kendo/2017.1.223/kendo.mobile.all.min.css")" rel="stylesheet" type="text/css" /> 
    <link href="@Url.Content("~/Content/kendo/2017.1.223/kendo.dataviz.min.css")" rel="stylesheet" type="text/css" /> 
    <link href="@Url.Content("~/Content/kendo/2017.1.223/kendo.bootstrap.min.css")" rel="stylesheet" type="text/css" /> 
    <link href="@Url.Content("~/Content/kendo/2017.1.223/kendo.dataviz.bootstrap.min.css")" rel="stylesheet" type="text/css" /> 
    <link href="~/Content/bootstrap.css" rel="stylesheet" /> 
    <link href="~/Content/app.css" rel="stylesheet" /> 

    <script src="~/Scripts/jquery-3.1.1.min.js"></script> 
    <script src="~/Scripts/bootstrap.min.js"></script> 

    <script src="@Url.Content("~/Scripts/kendo/2017.1.223/jquery.min.js")"></script> 
    <script src="@Url.Content("~/Scripts/kendo/2017.1.223/angular.min.js")"></script> 
    <script src="@Url.Content("~/Scripts/kendo/2017.1.223/jszip.min.js")"></script> 
    <script src="@Url.Content("~/Scripts/kendo/2017.1.223/kendo.all.min.js")"></script> 

</head> 
<body> 

    <header> 
     <nav class="navbar navbar-default"> 
      <div class="container-fluid"> 
       <!-- Brand and toggle get grouped for better mobile display --> 
       <div class="navbar-header"> 
        <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-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="#"><img src="~/Images/Computacenter.png" /> </a> 
        <h1>MCR</h1> 


       </div> 

       <!-- Collect the nav links, forms, and other content for toggling --> 
       <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1"> 

        <ul class="nav navbar-nav navbar-right text-center"> 
         <li><a href="#"><span class="glyphicon glyphicon glyphicon-file" aria-hidden="true"></span><p>Requests</p></a></li> 
         <li><a href="#"><span class="glyphicon glyphicon-tasks" aria-hidden="true"></span><p>Activities</p></a></li> 
         <li><a href="#"><span class="glyphicon glyphicon glyphicon-file" aria-hidden="true"></span><p>Reports</p></a></li> 
         <li><a href="#"><span class="glyphicon glyphicon glyphicon-cog" aria-hidden="true"></span><p>Admin</p></a></li> 


         <li class="hideli"> 
          @*<a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">*@ 
           @*<select class="form-control"> 
            <option><a href="#">ALL</a></option> 
            <option><a href="#">DE</a></option> 
            <option><a href="#">GB</a></option> 
            <option><a href="#">FR</a></option> 
           </select>*@ 
          <ul> 
           <li><a href="">ALL</a></li> 
           <li><a href="">DE</a></li> 
           <li><a href="">GB</a></li> 
           <li><a href="">FR</a></li> 

          </ul> 

          @*<div class="dropdown"> 
           <button class="btn dropdown-toggle" type="button" data-toggle="dropdown"> 
            Dropdown Example 
            <span class="caret"></span> 
           </button> 
           <ul class="dropdown-menu"> 
            <li><a href="#">HTML</a></li> 
            <li><a href="#">CSS</a></li> 
            <li><a href="#">JavaScript</a></li> 
           </ul> 
          </div>*@ 

           <p>Country</p> 
          @*</a>*@ 
         </li> 

         <li><a href="#"><span class="glyphicon glyphicon-save" aria-hidden="true"></span><p>Save View</p></a></li> 
        </ul> 
       </div><!-- /.navbar-collapse --> 
      </div><!-- /.container-fluid --> 
     </nav> 

    </header> 

    <div id="body"> 

      @RenderBody() 

    </div> 

    @*<div id="body"> 



     <section class="content-wrapper clear-fix"> 
      @RenderBody() 
     </section> 
    </div>*@ 

</body> 
</html>

来源

2017-03-01 Tom

hideli在css应该是.hideli。小提琴虽然会有所帮助。 –

你在使用Bootstrap吗？ – 333

是的，我使用引导3 – Tom

添加此内容的？你需要它的工作

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.2.1/jquery.min.js"></script> 
<script src="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>

来源

2017-03-01 18:40:40 mlegg

其已被引用。我只共享了一个剪辑的文件。我已更新文件以包含整个代码 – Tom

css创建下拉不起作用

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