Bootstrap数据间谍没有开火

geo*_*ker 5 html css css3 twitter-bootstrap twitter-bootstrap-3

我正在为自己创建一个个人资料网站,并且正在运行一个"体面"的概念.

然而,似乎我的导航栏的数据间谍要么没有开火,要么我的html/css有问题.

是一个带有html/css的笔.这是正文(相关数据间谍参考):

<body data-spy="scroll" data-target="#navbar" data-offset="50">
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这就是我设置导航栏的方式:

<nav id="navbar" class="collapse navbar-collapse">
  <div class="navbar-header">

    <button type="button" data-toggle="collapse" data-target="#navBar-target" class="navbar-toggle"> 
    <span class="icon-bar"> </span>
    <span class="icon-bar"> </span>
    <span class="icon-bar"> </span>
    </button>
  </div>
  <div class="collapse navbar-collapse" id="navBar-target">
    <ul class="nav navbar-nav navbar-right">
      <li>
        <a href="#top" > About </a>
      </li>
      <li>
        <a href="#portfolio" > Portfolio </a>
      </li>
      <li class>
        <a href="#contact" > Contact </a>
      </li>
    </ul>
  </div>
</nav> 
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以下是一些相关的CSS:

.navbar-default .navbar-nav>li>a:focus,
.navbar-default .navbar-nav>li>a:hover {
  color: #333;
  background-color: black;
}

.navbar-nav>li>a {
  color: #000000 !important;
}

#navbar {
  margin: 12px 0;
}

.navbar-default .navbar-toggle {
  border-color: #ddd;
} 

.navbar-toggle {
  position: relative;
  float: right;
  padding: 9vw 10vw
  margin-top: 8vw;
  margin-right: 15vw;
  margin-bottom: 8vw;
  background-color: transparent;
  background-image: none;
  border: 1vw solid transparent;
  border-radius: 4vw;
}

.navbar-default .navbar-collapse {
  border-color: #e7e7e7;
}

.nav>li {
  height: 100%;
  text-transform: uppercase;
  font-weight: bold;
  letter-spacing: 2px;
  display: -webkit-inline-box;
  display: -webkit-inline-flex;
  display: -ms-inline-flexbox;
  display: inline-flex;
}

.nav>li>a:focus,
.nav>li>a:hover {
  text-decoration: none;
  color: #722872;
  background-color: #FFFFFF;
}

.nav>li a:hover {
  color: #722872;
  background: #FFFFFF;
  box-shadow: 0px 2px 2px 1px rgba(0, 0, 0, 0.1);
}
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如上所述,代码笔上有一个完整的工作示例

Cob*_*ote 1

似乎 Bootstrap 不包含活动导航元素的默认样式。需要创建一个样式.navbar-nav>.active>a