我怎样才能得到两个导航条，一个接一个，是静态的，也是对顶部的？

Question

我有两个导航条，我希望两个都在页面的顶部，最初，但在滚动，我希望第一个导航栏与品牌形象崩溃，第二个导航栏与列表链接，以快照到页面的顶部，最初是第一个导航条。有人知道我是怎么做到的吗？以下是一幅供参考的图片：

​

HTML：

<!----- Navbar ----->
<nav class="navbar navbar-default navbar-collapse">
  <div class="container">
    <div class="navbar-header">
      <div class="navbar-header">
        <img id="brand-image" alt="DEVO Logo" src="/Applications/MAMP/htdocs/D0.1/images/DEVOorig.png"/>
      </div>
      <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#myNavbar">
      <span class="icon-bar"></span>
      <span class="icon-bar"></span>
      <span class="icon-bar"></span>
    </button>
  </div>
  <div class="collapse navbar-collapse" id="myNavbar">
    <ul class="nav navbar-nav navbar-right">
      <li><a href="#"></a></li>
      <li><a href="#"><span class="glyphicon glyphicon-user"></span></a></li>
      <li><a href="#"><span class="glyphicon glyphicon-shopping-cart"></span></a></li>
      <li>
        <div class="form-group form-inline">
          <input type="text" class="form-control" placeholder="Search products..">
        </div>
        <button type="submit" class="btn btn-secondary" id="product-search-btn"><span class="glyphicon glyphicon-search"></button>
      </li>
    </ul>
  </div>
</div>

​

<nav class="navbar navbar-inverse navbar-fixed-top" id="info-head">
  <div class="container-fluid">
    <div class="navbar-header">
      <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#myNavbar">
        <span class="icon-bar"></span>
        <span class="icon-bar"></span>
        <span class="icon-bar"></span>
    </button>
    <a class="navbar-brand" href="#">Tobi's Site</a>
  </div>
  <div>
    <div class="collapse navbar-collapse" id="myNavbar">
      <ul class="nav navbar-nav">
        <li><a href="#section1">About Us</a></li>
        <li><a href="#section2">FAQ's</a></li>
        <li><a href="#section3">Contact Us</a></li>
        <li class="dropdown"><a class="dropdown-toggle" data-toggle="dropdown" href="#">Work With Us <span class="caret"></span></a>
          <ul class="dropdown-menu">
            <li><a href="#section41">Drivers</a></li>
            <li><a href="#section42">Partners</a></li>
            <li><a href="#section43">In House</a></li>
          </ul>
        </li>
        <li><a href="#section5">T's & C's</a></li>
        <li><a href="#section5">Privacy Policy</a></li>
      </ul>
     </div>
  </div>
  </div>
</nav>

Answer 1

当页面被滚动时，使用引导带affix组件将第二个导航条引脚。然后为affix类添加CSS，以便将导航条固定在顶部。

$('#nav2').affix({
      offset: {
        top: 50
      }
}); 

2个导航条示例：http://codeply.com/go/hi6zhTU4h2