twitter-bootstrap – 如何强制Bootstrap Navbar Fix To Top向下
发布时间：2020-12-17 21:20:37 所属栏目：安全 来源：网络整理
导读：正如您在 This Demo Bootstrap 3中看到的那样,固定到顶部的Navbar在滑动向下的元素上的行为不像在小屏幕中的导航栏之后.相反,它将导航栏覆盖在内容元素之上.现在,请你告诉我是否有办法强制修复导航栏也像常规导航栏一样推动内容向下和向上推动滑动？ 谢谢 解
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正如您在
This Demo Bootstrap 3中看到的那样,固定到顶部的Navbar在滑动向下的元素上的行为不像在小屏幕中的导航栏之后.相反,它将导航栏覆盖在内容元素之上.现在,请你告诉我是否有办法强制修复导航栏也像常规导航栏一样推动内容向下和向上推动滑动？
谢谢 解决方法
好吧,所以你可以让它做你想做的事情,但请允许我告诉你为什么这样做真的是一个坏主意,因为最后它只是毫无意义.
以下答案将使用下面的代码段进行参考.您可能需要全屏查看,这意味着您可能还需要调整浏览器窗口的宽度以显示折叠的导航. $(function() {
$('button.navbar-toggle').click(function() {
var value = $('body').css('padding-top');
if (value === '70px') {
$('body').css('padding-top','+=235');
} else {
$('body').css('padding-top','70');
}
});
});
body {
padding-top: 70px;
}
<link href="//maxcdn.bootstrapcdn.com/bootstrap/3.3.2/css/bootstrap.min.css" rel="stylesheet" />
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.0/jquery.min.js"></script>
<script src="//maxcdn.bootstrapcdn.com/bootstrap/3.3.2/js/bootstrap.min.js"></script>
<nav class="navbar navbar-inverse navbar-fixed-top" role="navigation">
<div class="container">
<!-- 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">
<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="#">Brand</a>
</div>
<!-- Collect the nav links,forms,and other content for toggling -->
<div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
<ul class="nav navbar-nav">
<li class="active"><a href="#">Link <span class="sr-only">(current)</span></a>
</li>
<li><a href="#">Link</a>
</li>
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-expanded="false">Dropdown <span class="caret"></span></a>
<ul class="dropdown-menu" role="menu">
<li><a href="#">Action</a>
</li>
<li><a href="#">Another action</a>
</li>
<li><a href="#">Something else here</a>
</li>
<li class="divider"></li>
<li><a href="#">Separated link</a>
</li>
<li 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="#">Link</a>
</li>
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-expanded="false">Dropdown <span class="caret"></span></a>
<ul class="dropdown-menu" role="menu">
<li><a href="#">Action</a>
</li>
<li><a href="#">Another action</a>
</li>
<li><a href="#">Something else here</a>
</li>
<li class="divider"></li>
<li><a href="#">Separated link</a>
</li>
</ul>
</li>
</ul>
</div>
<!-- /.navbar-collapse -->
</div>
<!-- /.container-fluid -->
</nav>
<div class="container">
<div class="panel panel-default">
<div class="panel-heading">Panel heading without title</div>
<div class="panel-body">
Panel content
</div>
</div>
<div class="panel panel-default">
<div class="panel-heading">
<h3 class="panel-title">Panel title</h3>
</div>
<div class="panel-body">
Panel content
</div>
</div>
<div class="panel panel-default">
<div class="panel-heading">Panel heading without title</div>
<div class="panel-body">
Panel content
</div>
</div>
<div class="panel panel-default">
<div class="panel-heading">
<h3 class="panel-title">Panel title</h3>
</div>
<div class="panel-body">
Panel content
</div>
</div>
<div class="panel panel-default">
<div class="panel-heading">Panel heading without title</div>
<div class="panel-body">
Panel content
</div>
</div>
<div class="panel panel-default">
<div class="panel-heading">
<h3 class="panel-title">Panel title</h3>
</div>
<div class="panel-body">
Panel content
</div>
</div>
<div class="panel panel-default">
<div class="panel-heading">
<h3 class="panel-title">Panel title</h3>
</div>
<div class="panel-body">
Panel content
</div>
</div>
<div class="panel panel-default">
<div class="panel-heading">
<h3 class="panel-title">Panel title</h3>
</div>
<div class="panel-body">
Panel content
</div>
</div>
<div class="panel panel-default">
<div class="panel-heading">
<h3 class="panel-title">Panel title</h3>
</div>
<div class="panel-body">
Panel content
</div>
</div>
<div class="panel panel-default">
<div class="panel-heading">
<h3 class="panel-title">Panel title</h3>
</div>
<div class="panel-body">
Panel content
</div>
</div>
<div class="panel panel-default">
<div class="panel-heading">
<h3 class="panel-title">Panel title</h3>
</div>
<div class="panel-body">
Panel content
</div>
</div>
<div class="panel panel-default">
<div class="panel-heading">
<h3 class="panel-title">Panel title</h3>
</div>
<div class="panel-body">
Panel content
</div>
</div>
<div class="panel panel-default">
<div class="panel-heading">
<h3 class="panel-title">Panel title</h3>
</div>
<div class="panel-body">
Panel content
</div>
</div>
<div class="panel panel-default">
<div class="panel-heading">
<h3 class="panel-title">Panel title</h3>
</div>
<div class="panel-body">
Panel content
</div>
</div>
<div class="panel panel-default">
<div class="panel-heading">
<h3 class="panel-title">Panel title</h3>
</div>
<div class="panel-body">
Panel content
</div>
</div>
<div class="panel panel-default">
<div class="panel-heading">
<h3 class="panel-title">Panel title</h3>
</div>
<div class="panel-body">
Panel content
</div>
</div>
<div class="panel panel-default">
<div class="panel-heading">
<h3 class="panel-title">Panel title</h3>
</div>
<div class="panel-body">
Panel content
</div>
</div>
<div class="panel panel-default">
<div class="panel-heading">
<h3 class="panel-title">Panel title</h3>
</div>
<div class="panel-body">
Panel content
</div>
</div>
<div class="panel panel-default">
<div class="panel-heading">
<h3 class="panel-title">Panel title</h3>
</div>
<div class="panel-body">
Panel content
</div>
</div>
<div class="panel panel-default">
<div class="panel-heading">
<h3 class="panel-title">Panel title</h3>
</div>
<div class="panel-body">
Panel content
</div>
</div>
<div class="panel panel-default">
<div class="panel-heading">
<h3 class="panel-title">Panel title</h3>
</div>
<div class="panel-body">
Panel content
</div>
</div>
<div class="panel panel-default">
<div class="panel-heading">
<h3 class="panel-title">Panel title</h3>
</div>
<div class="panel-body">
Panel content
</div>
</div>
<div class="panel panel-default">
<div class="panel-heading">
<h3 class="panel-title">Panel title</h3>
</div>
<div class="panel-body">
Panel content
</div>
</div>
<div class="panel panel-default">
<div class="panel-heading">
<h3 class="panel-title">Panel title</h3>
</div>
<div class="panel-body">
Panel content
</div>
</div>
<div class="panel panel-default">
<div class="panel-heading">
<h3 class="panel-title">Panel title</h3>
</div>
<div class="panel-body">
Panel content
</div>
</div>
<div class="panel panel-default">
<div class="panel-heading">
<h3 class="panel-title">Panel title</h3>
</div>
<div class="panel-body">
Panel content
</div>
</div>
</div>
顶部的jQuery可以用来调整body元素的“padding-top”值. 最初,根据有关固定导航栏的official Bootstrap documentation,您必须在页面的正文标记中添加70px的填充顶部,因此导航栏不会与页面内容重叠.因此,要使页面内容在页面顶部向下移动时,您必须根据导航调整此填充以适应. 但这就是事情开始变得毫无意义的地方. 当您处于页面内容的最顶层时,它会被推下来看起来没那么好,类似于正常的Bootstrap导航栏： 但是,向下滚动大约一半,以便您的身体内容现在位于导航栏下并再次展开导航.你得到的内容实际上没有对用户有用的东西. 固定导航栏适用于您希望导航始终可见的情况,无论您在何处滚动页面,这意味着在移动网站上展开时,必须将鼠标悬停在网页内容上.鉴于此,当您在移动视图中展开固定的Bootstrap导航栏时,将页面的正文内容推下来是非常没有意义的. 我提供了一个答案,以防你或其他任何人真正需要某种解决方案,可能是由于经理或客户坚持拥有这种类型的功能,但我只是想指出它真的是多么无意义,那种方式您也可以向他们解释,可能需要您自担风险. ：P （编辑：李大同） 【声明】本站内容均来自网络，其相关言论仅代表作者个人观点，不代表本站立场。若无意侵犯到您的权利，请及时与联系站长删除相关内容! |