I'm struggling to understand why only the final section is being highlighted when scrolling. Can you help?
<body data-spy="scroll" data-target="#homeToolbar" data-offset="50">
<nav class="navbar navbar-default navbar-fixed-top" id="homeToolbar">
<div class="container-fluid">
<div class="navbar-header">
<a class="navbar-brand" href="#">Testing</a>
</div>
<div>
<div class="collapse navbar-collapse">
<ul class="nav navbar-nav pull-right">
<li><a href="#section2">Home</a></li>
<li><a href="#section3">Product</a></li>
<li><a href="#section4">Team</a></li>
<li><a href="#section5">Contact</a></li>
</ul>
</div>
</div>
</div>
</nav>
</body>