html - 如何删除顶部导航栏中的边框-反向导航栏-折叠

Question

当我在 boostrap 上打开折叠菜单时，如何删除顶部的边框？我试过用这个:

   .navbar-inverse .navbar-collapse,
    .navbar-inverse .navbar-form {
     border:0 !important;
    }

但边框仍然存在，有人知道我该如何去除它吗？谢谢

jsfiddle: http://jsfiddle.net/x2pL74aw/3/

html:

<nav class="navbar navbar-inverse">
  <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="#">WebSiteName</a>
    </div>
    <div class="collapse navbar-collapse" id="myNavbar">
      <ul class="nav navbar-nav">
        <li class="active"><a href="#">Home</a></li>
        <li><a href="#">Page 1</a></li>
        <li><a href="#">Page 2</a></li>
      </ul>
    </div>
  </div>
</nav>

CSS:

.navbar-inverse .navbar-collapse,
.navbar-inverse .navbar-form {
 border:0 !important;
}

Answer 1

从 .navbar-collapse 中移除 box-shadow 和 border-color。喜欢:

.navbar-collapse {
  box-shadow: none;
  border-color: none;
}

看看下面的片段:

.navbar-collapse {
  box-shadow: none !important;
  border: none !important;
}

<link href="http://netdna.bootstrapcdn.com/bootstrap/3.0.0/css/bootstrap.min.css" rel="stylesheet"/>
<nav class="navbar navbar-inverse">
  <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="#">WebSiteName</a>
    </div>
    <div class="collapse navbar-collapse" id="myNavbar">
      <ul class="nav navbar-nav">
        <li class="active"><a href="#">Home</a></li>
        <li><a href="#">Page 1</a></li>
        <li><a href="#">Page 2</a></li>
      </ul>
    </div>
  </div>
</nav>


<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="http://netdna.bootstrapcdn.com/bootstrap/3.0.0/js/bootstrap.min.js"></script>

希望这对您有所帮助!