I programmed a website for web- and mobiledevices and uploadet it to a domain. Some how the navbar dont want to collapse on my smartphone, if I resize the browser to the same size it works perfect (look at the screenshots).
My code snipped for the navbar:
<nav class="navbar navbar-default navbar-fixed-top" role="navigation">
<div class="container-fluid">
<div class="navbar-header">
<button type="button" class="navbar-toggle collapsed"
data-toggle="collapse" data-target="#myNavbar-1"
aria-expanded="false">
<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="/">PageName</a>
</div>
<div class="collapse navbar-collapse" id="myNavbar-1">
<ul class="nav navbar-nav hidden-sm hidden-xs">
...(some tabs)
</ul>
<ul class="nav navbar-nav pull-right hidden-sm hidden-xs">
...(some tabs)
</ul>
<ul class="nav navbar-nav visible-sm visible-xs">
...(some tabs)
</ul>
</div>
</div>
</nav>
Edit Solution: I forgot to add the
<meta name="viewport" content="width=device-width, initial-scale=1">
tag. Now it works fine.