I have got a really big problem and I can't find an answer for it. Here is the problem:
I work on a website created with drupal 7 and the twitter bootstrap dropdown menu. The menu works very well in my browser (Chrome and Firefox) and on a Windows and Android Phone. But when I check the menu on a Blackberry or an iPhone the dropdown menu gets hide by the content.
I searched a long time for the solution and tested a lot of different solutions (like these)but nothing worked.
Here you can the a screenshot of the problem: https://i.stack.imgur.com/mUsxA.jpg
<header id="header" class="header" role="header">
<div class="container">
::before
<nav class="navbar navbar-default" role="navigation">
::before
<!--
Brand and toggle get grouped for better mobile di…
-->
<div class="navbar-header">
::before
<button class="navbar-toggle" data-target="#navbar-collapse" data-toggle="collapse" type="button"></button>
<a id="logo" class="navbar-brand" href="/"></a>
::after
</div>
<!--
/.navbar-header
-->
<!--
Collect the nav links, forms, and other content f…
-->
<div id="navbar-collapse" class="navbar-collapse collapse in" style="">
::before
<ul id="main-menu" class="menu nav navbar-nav">
::before
<li class="first leaf menu-link-radwanderwege"></li>
<li class="expanded dropdown menu-link-unterkünfte radix-dropdown-processed">
<span class="dropdown-toggle nolink" data-target="#" data-toggle="dropdown" title=""></span>
<ul class="dropdown-menu">
<li class="first leaf menu-link-aktuelle-news"></li>
<li class="last leaf menu-link-hotels"></li>
</ul>
::after
</li>
<li class="expanded dropdown menu-link-mobilität radix-dropdown-processed"></li>
<li class="expanded dropdown menu-link-touristeninformationen radix-dropdown-processed open"></li>
<li class="expanded dropdown menu-link-reisen radix-dropdown-processed"></li>
<li class="last expanded dropdown menu-link-e-autos-und-fahrräder radix-dropdown-processed"></li>
::after
</ul>
::after
</div>
<!--
/.navbar-collapse
-->
::after
</nav>
<!--
/.navbar
-->
::after
</div>
<!--
/.container
-->
</header>
<div id="main-wrapper">
<div id="main" class="main">
<div class="container"></div>
<div id="content" class="container">
::before
<div class="region region-content">
<div id="block-easy-breadcrumb-easy-breadcrumb" class="block block-easy-breadcrumb"></div>
<div id="block-system-main" class="block block-system">
<div class="content">
<div class="panel-display panel-1col clearfix">
::before
<div class="panel-panel panel-col">
<div>
<div class="panel-pane pane-node">
<div class="pane-content">
<div class="ds-1col node node-suchmaske node-promoted node-teaser view-mode-teaser clearfix" typeof="sioc:Item foaf:Document" about="/node/14663"></div>