示例页面为http://blackrockdigital.github.io/startbootstrap-simple-sidebar/如何在增加宽度时使边栏不显示?
当您第一次打开页面时,会有侧边栏和主要内容。
而当您减小浏览器的宽度时,侧边栏将消失,当您稍后增加宽度时,侧边栏将再次显示。这很好。
但是,如果你打开页面,然后点击'切换菜单',首先关闭侧边栏。
然后,如果你减少浏览器的宽度,边栏将显示!如何让它不显示?
然后,如果您稍后增加宽度,侧边栏将会失望!如何使它仍然显示?
#wrapper {
padding-left: 0;
-webkit-transition: all 0.5s ease;
-moz-transition: all 0.5s ease;
-o-transition: all 0.5s ease;
transition: all 0.5s ease;
}
#wrapper.toggled {
padding-left: 250px;
}
#sidebar-wrapper {
z-index: 1000;
position: fixed;
left: 250px;
width: 0;
height: 100%;
margin-left: -250px;
overflow-y: auto;
background: #000;
-webkit-transition: all 0.5s ease;
-moz-transition: all 0.5s ease;
-o-transition: all 0.5s ease;
transition: all 0.5s ease;
}
#wrapper.toggled #sidebar-wrapper {
width: 250px;
}
#page-content-wrapper {
width: 100%;
position: absolute;
padding: 15px;
}
#wrapper.toggled #page-content-wrapper {
position: absolute;
margin-right: -250px;
}
/* Sidebar Styles */
.sidebar-nav {
position: absolute;
top: 0;
width: 250px;
margin: 0;
padding: 0;
list-style: none;
}
.sidebar-nav li {
text-indent: 20px;
line-height: 40px;
}
.sidebar-nav li a {
display: block;
text-decoration: none;
color: #999999;
}
.sidebar-nav li a:hover {
text-decoration: none;
color: #fff;
background: rgba(255,255,255,0.2);
}
.sidebar-nav li a:active,
.sidebar-nav li a:focus {
text-decoration: none;
}
.sidebar-nav > .sidebar-brand {
height: 65px;
font-size: 18px;
line-height: 60px;
}
.sidebar-nav > .sidebar-brand a {
color: #999999;
}
.sidebar-nav > .sidebar-brand a:hover {
color: #fff;
background: none;
}
@media(min-width:768px) {
#wrapper {
padding-left: 250px;
}
#wrapper.toggled {
padding-left: 0;
}
#sidebar-wrapper {
width: 250px;
}
#wrapper.toggled #sidebar-wrapper {
width: 0;
}
#page-content-wrapper {
padding: 20px;
position: relative;
}
#wrapper.toggled #page-content-wrapper {
position: relative;
margin-right: 0;
}
}
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.0/jquery.min.js"></script>
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" rel="stylesheet"/>
<div id="wrapper">
<!-- Sidebar -->
<div id="sidebar-wrapper">
<ul class="sidebar-nav">
<li class="sidebar-brand">
<a href="#">
Start Bootstrap
</a>
</li>
<li>
<a href="#">Dashboard</a>
</li>
<li>
<a href="#">Shortcuts</a>
</li>
<li>
<a href="#">Overview</a>
</li>
<li>
<a href="#">Events</a>
</li>
<li>
<a href="#">About</a>
</li>
<li>
<a href="#">Services</a>
</li>
<li>
<a href="#">Contact</a>
</li>
</ul>
</div>
<!-- /#sidebar-wrapper -->
<!-- Page Content -->
<div id="page-content-wrapper">
<div class="container-fluid">
<div class="row">
<div class="col-lg-12">
<h1>Simple Sidebar</h1>
<p>This template has a responsive menu toggling system. The menu will appear collapsed on smaller screens, and will appear non-collapsed on larger screens. When toggled using the button below, the menu will appear/disappear. On small screens, the page content will be pushed off canvas.</p>
<p>Make sure to keep all page content within the <code>#page-content-wrapper</code>.</p>
<a href="#menu-toggle" class="btn btn-default" id="menu-toggle">Toggle Menu</a>
</div>
</div>
</div>
</div>
<!-- /#page-content-wrapper -->
</div>
<!-- /#wrapper -->
<!-- jQuery -->
<script src="js/jquery.js"></script>
<!-- Bootstrap Core JavaScript -->
<script src="js/bootstrap.min.js"></script>
<!-- Menu Toggle Script -->
<script>
$("#menu-toggle").click(function(e) {
e.preventDefault();
$("#wrapper").toggleClass("toggled");
});
</script>
我不明白的编程方式隐藏和显示导航栏的地步?你为什么不让CSS注意它呢? – Abdel
@ 5parc我不知道如何在CSS中做到这一点,我更喜欢用CSS代替JS来解决它 – Sato
如果你正在使用引导3+,你可以使用'hidden-*'类,例如'hidden-xs' – HddnTHA