I'm really struggling to understand why my navbar is refusing to collapse. I've included the necessary Bootstrap CSS and JS files, as well as the transition and collapse JS files. Below is the code that I've been working with. Any assistance on this matter would be highly appreciated.
<nav class="navbar navbar-inverse navbar-fixed-top">
<div class="container-fluid">
<div class="navbar-header">
<button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#myNavbar">
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<a class="navbar-brand">LandingExample</a>
</div>
<div class="collapse navbar-collapse" id="myNavBar">
<ul class="nav navbar-nav">
<li class="active"><a href="./index.html">Home</a></li>
<li><a href="./fallpage.html">About Us</a></li>
<li><a href="">Submit Form</a></li>
<li><a href="./fallpage.html">Contact Us</a></li>
</ul>
<ul class="nav navbar-nav navbar-right">
<li><a href="./fallpage.html"><span class="glyphicon glyphicon-user"></span> Sign Up</a></li>
<li><a href="./fallpage.html"><span class="glyphicon glyphicon-log-in"></span> Login</a></li>
<li><img class="product-select-logo" width = "34.8" height="38.4" src="http://static.hsappstatic.net/style_guide/static-8.123/img/logos/hubspot/sprocket-64.png"></li>
</ul>
</div>
</div>
</nav>