Bootstrap 3.2當滾動過去時導航欄變大

Question

當我沿着頁面向下滾動時，導航變得更大。 導航欄位於代碼的頂部。 我試着把導航放在代碼的底部......它沒有奏效... 有人可以告訴我什麼是問題嗎？

我的代碼 - http://imgur.com/u2qr9hd 導航欄 - http://imgur.com/zSKoQyS

Answer 1

您需要刪除的屬性data-spy，data-offset-top和data-offset-bottom從nav標籤。真正的問題是data-offset-bottom屬性，但其他人不應該在那裏。

BOOTPLY DEMO

HTML：

<nav class="navbar navbar-default navbar-fixed-bottom" role="navigation"> 
    <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"> 
     <span class="sr-only">Toggle navigation</span> 
     <span class="icon-bar"></span> 
     <span class="icon-bar"></span> 
     <span class="icon-bar"></span> 
     </button> 
     <a class="navbar-brand" href="#">Brand</a> 
    </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"> 
     <li class="active"><a href="#">Link <span class="sr-only">(current)</span></a></li> 
     <li><a href="#">Link</a></li> 
     <li class="dropdown"> 
      <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-expanded="false">Dropdown <span class="caret"></span></a> 
      <ul class="dropdown-menu" role="menu"> 
      <li><a href="#">Action</a></li> 
      <li><a href="#">Another action</a></li> 
      <li><a href="#">Something else here</a></li> 
      <li class="divider"></li> 
      <li><a href="#">Separated link</a></li> 
      <li class="divider"></li> 
      <li><a href="#">One more separated link</a></li> 
      </ul> 
     </li> 
     </ul> 
     <form class="navbar-form navbar-left" role="search"> 
     <div class="form-group"> 
      <input type="text" class="form-control" placeholder="Search"> 
     </div> 
     <button type="submit" class="btn btn-default">Submit</button> 
     </form> 
     <ul class="nav navbar-nav navbar-right"> 
     <li><a href="#">Link</a></li> 
     <li class="dropdown"> 
      <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-expanded="false">Dropdown <span class="caret"></span></a> 
      <ul class="dropdown-menu" role="menu"> 
      <li><a href="#">Action</a></li> 
      <li><a href="#">Another action</a></li> 
      <li><a href="#">Something else here</a></li> 
      <li class="divider"></li> 
      <li><a href="#">Separated link</a></li> 
      </ul> 
     </li> 
     </ul> 
    </div><!-- /.navbar-collapse --> 
    </div><!-- /.container-fluid --> 
</nav> 

你還需要一點填充添加到body元素，讓你在頁面沒有按」底部內容不會卡在導航背後。

CSS：

body { 
    padding-bottom: 50px; 
}