我正在开发基于Bootstrap v3的仪表板界面.导航栏可以折叠,我想知道当导航栏折叠时是否有办法让徽标图像发生变化?
<div class="topbar">
<div class="topbar-left">
<div class="text-center">
<a href="" class="logo"><img src="<? echo $appUrl ?>/system/assets/img/logo.png" height="40px"></a>
</div>
</div>
<!-- Button mobile view to collapse sidebar menu -->
<div class="navbar navbar-default" role="navigation">
<div class="container">
<div class="">
<div class="pull-left">
<button class="button-menu-mobile open-left">
<i class="fa fa-bars"></i>
</button>
<span class="clearfix"></span>
</div>
<ul class="nav navbar-nav navbar-right pull-right">
<li class="dropdown">
请给我任何建议.
谢谢.
最佳答案 也许你可以用“hidden-xs”隐藏你的“主要”标识,你的“二级”标识隐藏了sm和lg尺寸
<div class="col-sm-x hidden-md hidden-lg">
<img src="mainLogo.gif" alt="main">
</div>
<div class="hidden-sm col-md-x col-lg-x">
<img src="secondaryLogo.gif" alt="secondary">
</div>