anchor.diff:        </button>
         <a class="navbar-brand" href="javascript:void(0)">Julia Observer</a>
       </div>
  +
       <div class="navbar-collapse collapse navbar-inverse-collapse">
  -      <ul class="nav navbar-nav">
  +
  +      <form class="navbar-form navbar-left">
  +        <div class="form-group">
  +          <input type="text" class="form-control col-sm-8" placeholder="Search">
  +        </div>
  +      </form>
  +
  +      <ul class="nav navbar-nav navbar-right">
           <li class="active"><a href="javascript:void(0)">Active</a></li>
           <li><a href="javascript:void(0)">Link</a></li>
           <li class="dropdown">
  
positive.code: <div class="navbar navbar-inverse navbar-fixed-top">
    <div class="container-fluid">
      <div class="navbar-header">
        <button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-inverse-collapse">
          <span class="icon-bar"></span>
  
negative.code:           </ul>
          </li>
        </ul>
  
      </div>
  
    </div>
  
  </div>
  