更改.active选项卡引导程序的默认颜色

Lax*_*xus 4 javascript jquery css3 twitter-bootstrap

我想改变导航栏上活动标签的颜色,我正在使用bootstrap,这是我的代码:

<body>
     <nav class = "navbar navbar-default navbar-fixed-top">
    <div class = "container-fluid">
      <div class = "navbar-header">
        <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#main_navbar">
          <span class="fa fa-bars"></span>
        </button>
        <a class="navbar-brand" href="#">Navbar</a>
      </div>
      <div class="collapse navbar-collapse" id="main_navbar">
        <ul class="nav navbar-nav">
          <li class="active"><a href="#">Menu 1</a></li>
          <li><a href="#">Menu 2</a></li>
          <li><a href="#">Menu 3</a></li>
        </ul>
      </div>
    </div>
       </nav>    </body>
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我尝试用它改变它但是没有用(css文件):

.active {
  background-color: green !important;
}
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也喜欢这个(javascript文件):

$(document).ready(function() {
  $('.active').css("background-color", "green");
});
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编辑:

我尝试用代码snipet解释更多,但css部分对我不起作用,

如果我将其添加到我的css文件中:

.navbar {
  background-color: yellow;

}
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整个条形变为黄色,但活动标签除外,该颜色是我想要更改的颜色.

Jhe*_*cht 7

Bootstrap对我做了一些非常愚蠢的事情,并且<a>在导航中将所有实际样式放在标签上,而不是<li>像大多数人那样.您应该更改大多数样式.active a而不是仅仅.active

.active a {

  background-color: green !important;

}
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<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" rel="stylesheet" />
<nav class="navbar navbar-default navbar-fixed-top">
  <div class="container-fluid">
    <div class="navbar-header">
      <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#main_navbar">
        <span class="fa fa-bars"></span>
      </button>
      <a class="navbar-brand" href="#">Navbar</a>
    </div>
    <div class="collapse navbar-collapse" id="main_navbar">
      <ul class="nav navbar-nav">
        <li class="active"><a href="#">Menu 1</a>
        </li>
        <li><a href="#">Menu 2</a>
        </li>
        <li><a href="#">Menu 3</a>
        </li>
      </ul>
    </div>
  </div>
</nav>
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