如何切换Bootstrap导航栏的第二行

Question

我是Bootstrap的新手，我正在构建第二行的导航栏。只有当它包含的搜索框是必需的时才会调用第二行。为了调用它，我有一个始终可见的按钮样式链接，它在移动设备宽度上完美工作，但不会将其隐藏在桌面宽度中。我没有得到什么？下面是HTML和here's a Bootply sample。在此先感谢...`

<div class="navbar-header"> 
    <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#nav1"> 
    <span class="icon-bar"></span> 
    <span class="icon-bar"></span> 
    <span class="icon-bar"></span> 
    </button> 
    <div class="btn-group"> 
     <a class="btn btn-inverse navbar-btn" href="#" title="Search" data-toggle="collapse" data-target="#nav2"> 
      <span class="glyphicon glyphicon-search white"></span> 
     </a>  
     <a class="navbar-brand" rel="home" href="#" title="Title">Brand</a>   
    </div> 
</div> 


<div class="collapse navbar-collapse" id="nav1"> 
    <ul class="nav navbar-nav"> 
    <li class="active"><a href="#">Home</a></li> 
    <li><a href="#about">About</a></li> 
    <li><a href="#contact">Contact</a></li> 
    </ul> 
</div><!--/.nav-collapse --> 


<div class="collapse navbar-collapse" id="nav2"> 
    <form class="navbar-form" role="search" id="srch-frm"> 
      <div class="input-group"> 
       <input class="form-control typeahead" placeholder="Search" name="pn" id="srch-term" type="text"> 
       <div class="input-group-btn"> 
        <button class="btn btn-default" type="submit"><i class="glyphicon glyphicon-search"></i></button> 
       </div> 
      </div> 
     </form> 
</div><!--/.nav-collapse --> 

`

Answer 1

很不错的。只需在搜索周围的折叠中移除“navbar-collapse”即可。

http://www.bootply.com/5fUw0Xo2vX

<div class="collapse" id="nav2"> 
    <form class="navbar-form" role="search" id="srch-frm"> 
    ....