為什麼通過類名直接改字型顏色改不了?
<nav class="navbar navbar-default">
<div class="container container-fluid">
<!-- Brand and toggle get grouped for better mobile display -->
<div class="navbar-header">
<button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1" aria-expanded="false">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<a class="navbar-brand" href="#">KingIM</a>
</div>
<!-- Collect the nav links, forms, and other content for toggling -->
<div class="collapse navbar-collapse navbar-changeColor" id="king-navbar">
<ul class="nav navbar-nav">
<li class="active"><a href="#">我的好友<span class="sr-only">(current)</span></a></li>
<li><a href="#">查詢好友</a></li>
<li><a href="#">討論組管理</a></li>
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">更多<span class="caret"></span></a>
<ul class="dropdown-menu">
<li><a href="#">Action</a></li>
<li><a href="#">Another action</a></li>
<li><a href="#">Something else here</a></li>
<li role="separator" class="divider"></li>
<li><a href="#">Separated link</a></li>
<li role="separator" class="divider"></li>
<li><a href="#">One more separated link</a></li>
</ul>
</li>
</ul>
<ul class="nav navbar-nav navbar-right">
<li><a href="/index/logout">退出登入</a></li>
</ul>
</div><!-- /.navbar-collapse -->
</div><!-- /.container-fluid -->
</nav>
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為什麼用下面這種方法修改字型顏色不生效?
.navbar-brand{
color:#fff;
}
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而這種方法會生效?
.navbar-default .navbar-header a {
color: #fff;
}
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神奇的是,下面這種又不生效:
.navbar-default a {
color: #fff;
}
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困擾老半天,希望有大神能解答!!!