将类从导航栏浅色更改为导航栏深色隐藏导航栏 [英] Changing class from navbar-light to navbar-dark hides navbar
问题描述
我正在使用 Laravel 和 Bootstrap CSS 框架构建一个网站.我在页面顶部有一个导航栏,用于在不同页面之间导航.默认情况下,Laravel 将导航栏类设置为 navbar-light
.由于我不希望导航栏是白色的,我将其更改为 navbar-dark
.当我这样做时,导航栏中的所有内容都消失了,只剩下没有任何内容的白条.我做错了什么?
<nav class="navbar navbar-expand-md navbar-dark navbar-laravel" style="margin-bottom: 20px;"><div class="容器"><a class="navbar-brand" href="{{ url('/') }}">{{ config('app.name', 'Laravel') }}</a><button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle导航"><span class="navbar-toggler-icon"></span>按钮><div class="collapse navbar-collapse" id="navbarSupportedContent"><!-- 导航栏左侧--><ul class="navbar-nav mr-auto"><li class="nav-item"><a class="nav-link" href="/">首页 <span class="sr-only">(当前)</span></a><li class="nav-item"><a class="nav-link" href="#">Messages <span class="sr-only">(current)</span></a><li class="nav-item"><a class="nav-link" href="#">人物 <span class="sr-only">(当前)</span></a><li class="nav-item"><a class="nav-link" href="#">照片 <span class="sr-only">(当前)</span></a><!-- 导航栏右侧--><ul class="navbar-nav ml-auto"><!-- 身份验证链接-->@客人<li><a class="nav-link" href="{{ route('login') }}">登录</a></li><li><a class="nav-link" href="{{ route('register') }}">注册</a></li>@别的<li class="nav-item dropdown"><a class="nav-link dropdown-toggle" href="#" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">{{ Auth::user()->name }} <span class="caret"></span></a><div class="下拉菜单" aria-labelledby="navbarDropdown"><a class="dropdown-item" href="dashboard">仪表盘</a><a class="dropdown-item" href="{{ route('logout') }}"onclick="event.preventDefault();document.getElementById('logout-form').submit();">登出</a><form id="logout-form" action="{{ route('logout') }}" method="POST" style="display: none;">@csrf</表单>
@endguest
</nav>
您还需要在 navbar-dark
之外添加类 bg-dark
.
navbar-dark
基本上只是确定文本应该是什么颜色,即深色背景导航栏的浅色文本和浅色导航栏的深色文本.
bg-dark
然后确定导航栏的实际背景颜色.但其他颜色也可以.例如,bg-primary
或 bg-danger
可以很好地与 navbar-dark
配合使用.
I am building a website using Laravel and the Bootstrap CSS framework. I have a navbar at the top of the page which is used for navigating across different pages. By default, the Laravel set the navbar class to navbar-light
. Since I don't want the navbar to be white, I changed it to navbar-dark
. When I do this, all the content from navbar disappears, there remains only white bar without any content. What am I doing wrong?
<nav class="navbar navbar-expand-md navbar-dark navbar-laravel" style="margin-bottom: 20px;">
<div class="container">
<a class="navbar-brand" href="{{ url('/') }}">
{{ config('app.name', 'Laravel') }}
</a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarSupportedContent">
<!-- Left Side Of Navbar -->
<ul class="navbar-nav mr-auto">
<li class="nav-item">
<a class="nav-link" href="/">Home <span class="sr-only">(current)</span></a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Messages <span class="sr-only">(current)</span></a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">People <span class="sr-only">(current)</span></a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Photos <span class="sr-only">(current)</span></a>
</li>
</ul>
<!-- Right Side Of Navbar -->
<ul class="navbar-nav ml-auto">
<!-- Authentication Links -->
@guest
<li><a class="nav-link" href="{{ route('login') }}">Login</a></li>
<li><a class="nav-link" href="{{ route('register') }}">Register</a></li>
@else
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" href="#" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
{{ Auth::user()->name }} <span class="caret"></span>
</a>
<div class="dropdown-menu" aria-labelledby="navbarDropdown">
<a class="dropdown-item" href="dashboard">
Dashboard
</a>
<a class="dropdown-item" href="{{ route('logout') }}"
onclick="event.preventDefault();
document.getElementById('logout-form').submit();">
Logout
</a>
<form id="logout-form" action="{{ route('logout') }}" method="POST" style="display: none;">
@csrf
</form>
</div>
</li>
@endguest
</ul>
</div>
</div>
</nav>
You also need to add the class bg-dark
additionally to navbar-dark
.
navbar-dark
basically just determines what color the text should be i.e. light text for a dark-background navbar and dark text for a light-colored navbar.
bg-dark
then determines the actual background-color of the navbar. But other colors would work just as well. For example, bg-primary
or bg-danger
would work well with navbar-dark
.
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