Bootstrap导航栏切换按钮在较小的屏幕尺寸上消失
问题描述:
我的导航栏完全消失,我只剩下navbar-brand
类中的文本。我甚至没有切换按钮。Bootstrap导航栏切换按钮在较小的屏幕尺寸上消失
任何帮助,非常感谢。
#custom-bootstrap-menu.navbar-default .navbar-brand {
color: rgba(171, 106, 106, 1);
}
#custom-bootstrap-menu.navbar-default {
font-size: 14px;
background-color: rgba(255, 255, 255, 1);
border-width: 0px;
border-radius: 4px;
}
#custom-bootstrap-menu.navbar-default .navbar-nav>li>a {
color: rgba(0, 0, 0, 1);
background-color: rgba(255, 255, 255, 1);
}
#custom-bootstrap-menu.navbar-default .navbar-nav>li>a:hover,
#custom-bootstrap-menu.navbar-default .navbar-nav>li>a:focus {
color: rgba(27, 219, 81, 1);
background-color: rgba(255, 255, 255, 1);
}
#custom-bootstrap-menu.navbar-default .navbar-nav>.active>a,
#custom-bootstrap-menu.navbar-default .navbar-nav>.active>a:hover,
#custom-bootstrap-menu.navbar-default .navbar-nav>.active>a:focus {
color: rgba(14, 145, 40, 1);
background-color: rgba(255, 255, 255, 1);
}
#custom-bootstrap-menu.navbar-default .navbar-toggle {
border-color: #ffffff;
}
#custom-bootstrap-menu.navbar-default .navbar-toggle:hover,
#custom-bootstrap-menu.navbar-default .navbar-toggle:focus {
background-color: #ffffff;
}
#custom-bootstrap-menu.navbar-default .navbar-toggle .icon-bar {
background-color: #ffffff;
}
#custom-bootstrap-menu.navbar-default .navbar-toggle:hover .icon-bar,
#custom-bootstrap-menu.navbar-default .navbar-toggle:focus .icon-bar {
background-color: #ffffff;
}
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet" />
<div id="custom-bootstrap-menu" class="navbar navbar-default " role="navigation">
<div class="container-fluid">
<div class="navbar-header">
<a class="navbar-brand" href="#">Image</a>
<button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-menubuilder">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
</div>
<div class="collapse navbar-collapse navbar-menubuilder">
<ul class="nav navbar-nav navbar-right">
<li><a href="/">Home</a>
</li>
<li><a href="/products">Products</a>
</li>
<li><a href="/about-us">About Us</a>
</li>
<li><a href="/contact">Contact Us</a>
</li>
</ul>
</div>
</div>
</div>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.7/js/bootstrap.min.js"></script>
这可能是一些小的细节,但我缺少它不管教程。
预先感谢您。
答
菜单并没有消失,你在你的自定义css(你的代码的最后几个kines)中将它的颜色设置为白色。我在这里改成了红色。
#custom-bootstrap-menu.navbar-default .navbar-brand {
color: rgba(171, 106, 106, 1);
}
#custom-bootstrap-menu.navbar-default {
font-size: 14px;
background-color: rgba(255, 255, 255, 1);
border-width: 0px;
border-radius: 4px;
}
#custom-bootstrap-menu.navbar-default .navbar-nav>li>a {
color: rgba(0, 0, 0, 1);
background-color: rgba(255, 255, 255, 1);
}
#custom-bootstrap-menu.navbar-default .navbar-nav>li>a:hover,
#custom-bootstrap-menu.navbar-default .navbar-nav>li>a:focus {
color: rgba(27, 219, 81, 1);
background-color: rgba(255, 255, 255, 1);
}
#custom-bootstrap-menu.navbar-default .navbar-nav>.active>a,
#custom-bootstrap-menu.navbar-default .navbar-nav>.active>a:hover,
#custom-bootstrap-menu.navbar-default .navbar-nav>.active>a:focus {
color: rgba(14, 145, 40, 1);
background-color: rgba(255, 255, 255, 1);
}
#custom-bootstrap-menu.navbar-default .navbar-toggle {
border-color: #ffffff;
}
#custom-bootstrap-menu.navbar-default .navbar-toggle:hover,
#custom-bootstrap-menu.navbar-default .navbar-toggle:focus {
background-color: red;
}
#custom-bootstrap-menu.navbar-default .navbar-toggle .icon-bar {
background-color: red;
}
#custom-bootstrap-menu.navbar-default .navbar-toggle:hover .icon-bar,
#custom-bootstrap-menu.navbar-default .navbar-toggle:focus .icon-bar {
background-color: white;
}
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet" />
<div id="custom-bootstrap-menu" class="navbar navbar-default" role="navigation">
<div class="container-fluid">
<div class="navbar-header">
<button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-menubuilder">
<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="#">Image</a>
</div>
<div class="collapse navbar-collapse navbar-menubuilder">
<ul class="nav navbar-nav navbar-right">
<li><a href="/">Home</a>
</li>
<li><a href="/products">Products</a>
</li>
<li><a href="/about-us">About Us</a>
</li>
<li><a href="/contact">Contact Us</a>
</li>
</ul>
</div>
</div>
</div>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.7/js/bootstrap.min.js"></script>
答
因为你设置颜色为#ffffff
,所以它不会消失,只是因为相同的背景颜色不可视化正在发生。刚刚更改为#000000
,看起来很好。
#custom-bootstrap-menu.navbar-default .navbar-brand {
color: rgba(171, 106, 106, 1);
}
#custom-bootstrap-menu.navbar-default {
font-size: 14px;
background-color: rgba(255, 255, 255, 1);
border-width: 0px;
border-radius: 4px;
}
#custom-bootstrap-menu.navbar-default .navbar-nav>li>a {
color: rgba(0, 0, 0, 1);
background-color: rgba(255, 255, 255, 1);
}
#custom-bootstrap-menu.navbar-default .navbar-nav>li>a:hover,
#custom-bootstrap-menu.navbar-default .navbar-nav>li>a:focus {
color: rgba(27, 219, 81, 1);
background-color: rgba(255, 255, 255, 1);
}
#custom-bootstrap-menu.navbar-default .navbar-nav>.active>a,
#custom-bootstrap-menu.navbar-default .navbar-nav>.active>a:hover,
#custom-bootstrap-menu.navbar-default .navbar-nav>.active>a:focus {
color: rgba(14, 145, 40, 1);
background-color: rgba(255, 255, 255, 1);
}
#custom-bootstrap-menu.navbar-default .navbar-toggle {
border-color: #000000;
}
#custom-bootstrap-menu.navbar-default .navbar-toggle:hover,
#custom-bootstrap-menu.navbar-default .navbar-toggle:focus {
background-color: #ffffff;
}
#custom-bootstrap-menu.navbar-default .navbar-toggle .icon-bar {
background-color: #000000;
}
#custom-bootstrap-menu.navbar-default .navbar-toggle:hover .icon-bar,
#custom-bootstrap-menu.navbar-default .navbar-toggle:focus .icon-bar {
background-color: #ffffff;
}
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet" />
<div id="custom-bootstrap-menu" class="navbar navbar-default" role="navigation">
<div class="container-fluid">
<div class="navbar-header"><a class="navbar-brand" href="#">Image</a>
<button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-menubuilder">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
</div>
<div class="collapse navbar-collapse navbar-menubuilder">
<ul class="nav navbar-nav navbar-right">
<li><a href="/">Home</a>
</li>
<li><a href="/products">Products</a>
</li>
<li><a href="/about-us">About Us</a>
</li>
<li><a href="/contact">Contact Us</a>
</li>
</ul>
</div>
</div>
</div>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.7/js/bootstrap.min.js"></script>
答
#custom-bootstrap-menu.navbar-default .navbar-brand {
color: rgba(171, 106, 106, 1);
}
#custom-bootstrap-menu.navbar-default {
font-size: 14px;
background-color: rgba(255, 255, 255, 1);
border-width: 0px;
border-radius: 4px;
}
#custom-bootstrap-menu.navbar-default .navbar-nav>li>a {
color: rgba(0, 0, 0, 1);
background-color: rgba(255, 255, 255, 1);
}
#custom-bootstrap-menu.navbar-default .navbar-nav>li>a:hover,
#custom-bootstrap-menu.navbar-default .navbar-nav>li>a:focus {
color: rgba(27, 219, 81, 1);
background-color: rgba(255, 255, 255, 1);
}
#custom-bootstrap-menu.navbar-default .navbar-nav>.active>a,
#custom-bootstrap-menu.navbar-default .navbar-nav>.active>a:hover,
#custom-bootstrap-menu.navbar-default .navbar-nav>.active>a:focus {
color: rgba(14, 145, 40, 1);
background-color: rgba(255, 255, 255, 1);
}
#custom-bootstrap-menu.navbar-default .navbar-toggle {
border-color: #ffffff;
background: #ccc;
}
#custom-bootstrap-menu.navbar-default .navbar-toggle:hover,
#custom-bootstrap-menu.navbar-default .navbar-toggle:focus {
background-color: #ccc;
}
#custom-bootstrap-menu.navbar-default .navbar-toggle .icon-bar {
background-color: #ffffff;
}
#custom-bootstrap-menu.navbar-default .navbar-toggle:hover .icon-bar,
#custom-bootstrap-menu.navbar-default .navbar-toggle:focus .icon-bar {
background-color: #ffffff;
}
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet" />
<div id="custom-bootstrap-menu" class="navbar navbar-default " role="navigation">
<div class="container-fluid">
<div class="navbar-header"><a class="navbar-brand" href="#">Image</a>
<button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-menubuilder">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
</div>
<div class="collapse navbar-collapse navbar-menubuilder">
<ul class="nav navbar-nav navbar-right">
<li><a href="/">Home</a>
</li>
<li><a href="/products">Products</a>
</li>
<li><a href="/about-us">About Us</a>
</li>
<li><a href="/contact">Contact Us</a>
</li>
</ul>
</div>
</div>
</div>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.7/js/bootstrap.min.js"></script>
谢谢。有关如何将按钮添加到导航栏的任何想法?我加了一个。它被排列在最前面。而不是开始垂直中心。我有一个图像,所以我已经设置行高为56px。 –
如果您的导航栏设置为固定高度。那么你可以设置按钮的边距。 – ab29007
你能提供一个包含这个按钮的新代码的小提琴 – ab29007