在垂直导航栏引导程序底部添加固定导航项
Posted
技术标签:
【中文标题】在垂直导航栏引导程序底部添加固定导航项【英文标题】：Add fixed navigation item at bottom of vertical navigation bar bootstrap 【发布时间】：2016-04-11 03:53:13 【问题描述】：我正在为 Bootstrap 使用 SBAdmin 模板，目前在屏幕左侧有一个垂直导航栏。但是，我确实希望在用户屏幕底部有一个导航项，我目前可以通过在<li> 标记中附加style="bottom: o; position: fixed;" 来实现，如下所示：
<li style="bottom: 0; position: fixed; overlay: none;">
<a href="#"><i class="fa fa-fw fa-paper-plane-o"></i> Bottom Item</a>
</li>
但是，正如预期的那样，当用户的屏幕变小并且导航项靠得更近时，它们会重叠。
Normal viewing image
Smaller screen/zoomed in viewing
因此，如果屏幕较小，则该项目将位于导航项的底部，但如果屏幕较大，则会卡在底部。
谢谢。
【问题讨论】：
【参考方案1】：你应该从你的 li 中删除内联样式并将这个 CSS 添加到你的项目中：
@media(min-width:992px)
.side-nav>li:last-child
position: absolute;
bottom: 0;
li 将保留在 md 和 lg 屏幕的底部，并将与 sm 屏幕上的其余部分组合在一起。如果您也希望它在 md 上分组，请在上面的代码中将 992px 更改为 1200px。
演示：
@media(min-width:992px)
.side-nav>li:last-child
position: absolute;
bottom: 0;
@media(min-width:768px)
#page-wrapper
min-height: calc(100vh - 50px);
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" integrity="sha384-1q8mTJOASx8j1Au+a5WDVnPi2lkFfwwEAa8hDDdjZlpLegxhjVME1fgjWPGmkzs7" crossorigin="anonymous">
<link href="http://ironsummitmedia.github.io/startbootstrap-sb-admin/css/sb-admin.css" rel="stylesheet">
<link href="http://ironsummitmedia.github.io/startbootstrap-sb-admin/css/plugins/morris.css" rel="stylesheet">
<link href="http://ironsummitmedia.github.io/startbootstrap-sb-admin/font-awesome/css/font-awesome.min.css" rel="stylesheet" type="text/css">
<!--[if lt IE 9]>
<script src="https://oss.maxcdn.com/libs/html5shiv/3.7.0/html5shiv.js"></script>
<script src="https://oss.maxcdn.com/libs/respond.js/1.4.2/respond.min.js"></script>
<![endif]-->
<script src="http://ironsummitmedia.github.io/startbootstrap-sb-admin/js/jquery.js"></script>
<script src="http://ironsummitmedia.github.io/startbootstrap-sb-admin/js/bootstrap.min.js"></script>
<script src="http://ironsummitmedia.github.io/startbootstrap-sb-admin/js/plugins/morris/raphael.min.js"></script>
<script src="http://ironsummitmedia.github.io/startbootstrap-sb-admin/js/plugins/morris/morris.min.js"></script>
<script src="http://ironsummitmedia.github.io/startbootstrap-sb-admin/js/plugins/morris/morris-data.js"></script>
<div id="wrapper">
<!-- Navigation -->
<nav class="navbar navbar-inverse navbar-fixed-top" role="navigation">
<!-- Brand and toggle get grouped for better mobile display -->
<div class="navbar-header">
<button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-ex1-collapse">
<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="index.html">SB Admin</a>
</div>
<!-- Top Menu Items -->
<ul class="nav navbar-right top-nav">
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown"><i class="fa fa-envelope"></i> <b class="caret"></b></a>
<ul class="dropdown-menu message-dropdown">
<li class="message-preview">
<a href="#">
<div class="media">
<span class="pull-left">
<img class="media-object" src="http://placehold.it/50x50" >
</span>
<div class="media-body">
<h5 class="media-heading"><strong>John Smith</strong>
</h5>
<p class="small text-muted"><i class="fa fa-clock-o"></i> Yesterday at 4:32 PM</p>
<p>Lorem ipsum dolor sit amet, consectetur...</p>
</div>
</div>
</a>
</li>
<li class="message-preview">
<a href="#">
<div class="media">
<span class="pull-left">
<img class="media-object" src="http://placehold.it/50x50" >
</span>
<div class="media-body">
<h5 class="media-heading"><strong>John Smith</strong>
</h5>
<p class="small text-muted"><i class="fa fa-clock-o"></i> Yesterday at 4:32 PM</p>
<p>Lorem ipsum dolor sit amet, consectetur...</p>
</div>
</div>
</a>
</li>
<li class="message-preview">
<a href="#">
<div class="media">
<span class="pull-left">
<img class="media-object" src="http://placehold.it/50x50" >
</span>
<div class="media-body">
<h5 class="media-heading"><strong>John Smith</strong>
</h5>
<p class="small text-muted"><i class="fa fa-clock-o"></i> Yesterday at 4:32 PM</p>
<p>Lorem ipsum dolor sit amet, consectetur...</p>
</div>
</div>
</a>
</li>
<li class="message-footer">
<a href="#">Read All New Messages</a>
</li>
</ul>
</li>
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown"><i class="fa fa-bell"></i> <b class="caret"></b></a>
<ul class="dropdown-menu alert-dropdown">
<li>
<a href="#">Alert Name <span class="label label-default">Alert Badge</span></a>
</li>
<li>
<a href="#">Alert Name <span class="label label-primary">Alert Badge</span></a>
</li>
<li>
<a href="#">Alert Name <span class="label label-success">Alert Badge</span></a>
</li>
<li>
<a href="#">Alert Name <span class="label label-info">Alert Badge</span></a>
</li>
<li>
<a href="#">Alert Name <span class="label label-warning">Alert Badge</span></a>
</li>
<li>
<a href="#">Alert Name <span class="label label-danger">Alert Badge</span></a>
</li>
<li class="divider"></li>
<li>
<a href="#">View All</a>
</li>
</ul>
</li>
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown"><i class="fa fa-user"></i> John Smith <b class="caret"></b></a>
<ul class="dropdown-menu">
<li>
<a href="#"><i class="fa fa-fw fa-user"></i> Profile</a>
</li>
<li>
<a href="#"><i class="fa fa-fw fa-envelope"></i> Inbox</a>
</li>
<li>
<a href="#"><i class="fa fa-fw fa-gear"></i> Settings</a>
</li>
<li class="divider"></li>
<li>
<a href="#"><i class="fa fa-fw fa-power-off"></i> Log Out</a>
</li>
</ul>
</li>
</ul>
<!-- Sidebar Menu Items - These collapse to the responsive navigation menu on small screens -->
<div class="collapse navbar-collapse navbar-ex1-collapse">
<ul class="nav navbar-nav side-nav">
<li class="active">
<a href="index.html"><i class="fa fa-fw fa-dashboard"></i> Dashboard</a>
</li>
<li>
<a href="charts.html"><i class="fa fa-fw fa-bar-chart-o"></i> Charts</a>
</li>
<li>
<a href="tables.html"><i class="fa fa-fw fa-table"></i> Tables</a>
</li>
<li>
<a href="forms.html"><i class="fa fa-fw fa-edit"></i> Forms</a>
</li>
<li>
<a href="bootstrap-elements.html"><i class="fa fa-fw fa-desktop"></i> Bootstrap Elements</a>
</li>
<li>
<a href="bootstrap-grid.html"><i class="fa fa-fw fa-wrench"></i> Bootstrap Grid</a>
</li>
<li>
<a href="javascript:;" data-toggle="collapse" data-target="#demo"><i class="fa fa-fw fa-arrows-v"></i> Dropdown <i class="fa fa-fw fa-caret-down"></i></a>
<ul id="demo" class="collapse">
<li>
<a href="#">Dropdown Item</a>
</li>
<li>
<a href="#">Dropdown Item</a>
</li>
</ul>
</li>
<li>
<a href="blank-page.html"><i class="fa fa-fw fa-file"></i> Blank Page</a>
</li>
<li>
<a href="index-rtl.html"><i class="fa fa-fw fa-dashboard"></i> RTL Dashboard</a>
</li>
</ul>
</div>
<!-- /.navbar-collapse -->
</nav>
<div id="page-wrapper">
</div>
</div>【讨论】：
以上是关于在垂直导航栏引导程序底部添加固定导航项的主要内容，如果未能解决你的问题，请参考以下文章