I am currently working on building a webpage with bootstrap3, but I have encountered an issue with the navigation bar. I would like the navigation links ("Web Design", "Development", "Photography", "Blog") to be evenly spaced out within the horizontal navbar, instead of being stacked up on the left side. Here is a snippet of the code that I have been using - I hope I haven't overlooked any crucial parts. I have not made any modifications to the bootstrap CSS.
<div class="container-fluid">
<div class="row">
<!-- Navbar -->
<nav class="navbar navbar-default" role="navigation">
<div class="navbar-header">
<button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
</div>
<div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
<ul class="nav navbar-nav">
<li class="active col-md-3">
<a href="#">Web Design</a>
</li>
<li class="col-md-3">
<a href="#">Development</a>
</li>
<li class="col-md-3">
<a href="#">Photography</a>
</li>
<li class="col-md-3">
<a href="#">Blog</a>
</li>
</ul>
</div>
</nav>
</div>
<div class="row">
<h1>Hello World!</h1>
</div>
</div>
</div>
</div>