Html 引导下拉菜单活动类
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bootstrap dropdown menu active class
提问by G?kalp Demirba?
i am trying to create a nav bar by using bootstrap but when I redirect active class to dropdown menu, all the sub menus receive active class. I only want Project section to use active class
我正在尝试使用引导程序创建导航栏，但是当我将活动类重定向到下拉菜单时，所有子菜单都会接收活动类。我只希望项目部分使用活动类
<nav class="navbar navbar-default" role="navigation">
<div class="navbar-header">
<button type="button" class="navbar-toggle" data-toggle="collapse"
data-target="#example-navbar-collapse">
<span class="sr-only"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
</div>
<div class="collapse navbar-collapse" id="example-navbar-collapse">
<ul class="nav navbar-nav">
<li><a href="index.html">About</a></li>
<li class="dropdown active">
<a href="#" class="dropdown-toggle" data-toggle="dropdown">
Project <b class="caret"></b>
</a>
<ul class="dropdown-menu">
<li><a href="project.html">AAAA</a></li>
<li><a href="#">BBB</a></li>
<li><a href="#">CCC</a></li>
<li><a href="#">DDD</a></li>
</ul>
</li>
<li><a href="team.html">Team</a></li>
<li><a href="contact.html">Contact</a></li>
</ul>
</div>
</nav>
回答by Fahad Hasan
You need to use .navbar-default .navbar-nav>.active>a { //styles here for active li }to target the active <li>only, like this:
您只需要使用.navbar-default .navbar-nav>.active>a { //styles here for active li }来定位 active 对象<li>，如下所示：
.dropdown-menu {
display: block !important;
}
.navbar-default .navbar-nav>.active>a {
color: blue !important;
background: red !important;
}<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap-theme.min.css" rel="stylesheet" />
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/js/bootstrap.min.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap.min.css" rel="stylesheet" />
<nav class="navbar navbar-default" role="navigation">
<div class="navbar-header">
<button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#example-navbar-collapse">
<span class="sr-only"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
</div>
<div class="collapse navbar-collapse" id="example-navbar-collapse">
<ul class="nav navbar-nav">
<li><a href="index.html">About</a>
</li>
<li class="dropdown active">
<a href="#" class="dropdown-toggle" data-toggle="dropdown">
Project <b class="caret"></b>
</a>
<ul class="dropdown-menu">
<li><a href="project.html">AAAA</a>
</li>
<li><a href="#">BBB</a>
</li>
<li><a href="#">CCC</a>
</li>
<li><a href="#">DDD</a>
</li>
</ul>
</li>
<li><a href="team.html">Team</a>
</li>
<li><a href="contact.html">Contact</a>
</li>
</ul>
</div>
</nav>回答by Marina
Since I can't see the css code... you need to add an >between liand ul
由于我看不到 css 代码...您需要>在li和之间添加一个ul
li > ul
