我有一个带有引导程序4的可折叠导航栏。我使用col-sm-2和navbar-expand-sm使其折叠成一个汉堡包,而屏幕尺寸却应占据整个宽度。>
问题是在sm屏幕上方,我希望它具有h-100,所以它是一个侧边栏,但作为sm / xs,我希望它仅占用切换按钮所需的空间。
无论如何,有没有用Bootstrap来实现这一点的?还是我卡住了jquery来添加/删除h-100类?
<div class="container">
<nav class="navbar-nav navbar-expand-sm flex-column navbar-dark col-sm-2 fixed-top" >
<div>
<a href="{{url_for('index')}}" class="navbar-brand">
<img src="{{url_for('static', filename='img/Logo.png')}}" height="50px">
</a>
<button class="navbar-toggler col-2 float-right" type="button" data-toggle="collapse" data-target="#navbarResponsive" aria-controls="navbarResponsive" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
</div>
<div class="collapse navbar-collapse flex-column" id="navbarResponsive">
<a class="nav-link {{ 'active' if active_page == 'new_user' else '' }}" href="{{url_for('new_user')}}">Sign Up</a>
<a class="nav-link {{ 'active' if active_page == 'new_comment' else '' }}" href="{{url_for('new_comment')}}">Opine</a>
</div>
</nav>
</div>
答案 0 :(得分:1)
这是媒体查询的好用例... h-100基本上增加了100%的高度;
以下代码段:
nav {
border: 1px solid red;
}
@media screen and (min-width:579px) {
nav {
border: 1px solid green;
height: 100vh;
}
}
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.5.0/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.16.0/umd/popper.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.5.0/js/bootstrap.min.js"></script>
<div class="container">
<nav class="navbar-nav navbar-expand-sm flex-column navbar-dark col-sm-2 fixed-top">
<div>
<a href="{{url_for('index')}}" class="navbar-brand">
<img src="https://akberiqbal.com/favicon.ico" height="50px">
</a>
<button class="navbar-toggler col-2 float-right" type="button" data-toggle="collapse" data-target="#navbarResponsive" aria-controls="navbarResponsive" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
</div>
<div class="collapse navbar-collapse flex-column" id="navbarResponsive">
<a class=" nav-link {{ 'active' if active_page == 'new_user' else '' }}" href="{{url_for('new_user')}}">Sign Up</a>
<a class="nav-link {{ 'active' if active_page == 'new_comment' else '' }}" href="{{url_for('new_comment')}}">Opine</a>
</div>
</nav>
</div>