<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta name="author" content="Emily Thacker">
<title>[Insert Name of Business Here]</title>
<link rel="stylesheet" type="text/css" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css"
<link rel="stylesheet" type="text/css" href="large_css.css">
</head>
<body>
<div class="container-fluid">
<header class="page-header">
<h3 class="text-center">[Insert Company Logo here]</h3>
<div class="btn-group btn-group-justified">
<a class="btn navigation">Home</a>
<a class="btn navigation">About</a>
<div class="btn-group">
<a class="btn dropdown-toggle navigation" data-toggle="dropdown">
Services <span class="caret"></span></a>
<ul class="dropdown-menu" role="menu">
<li><a href="#">Web</a></li>
<li><a href="#">Mobile</a></li>
<li><a href="#">App</a></li>
</ul>
</div>
<a class="btn navigation">Contact</a>
</div>
</header>
<section class="">
Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.
</section>
<section>
Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.
</section>
<footer class="modal-footer">
<li class="list-group-item-heading">list item</li>
</ul>
<address>Contact Information</address>
</footer>
</div> <!-- closing container -->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
</body>
</html>
CSS
body > div > header > div > a.navigation {
background-color: darkgray;
color: white;
}
So I'm trying to alter the colors on the navigation bar (anchor tags with btn classes). I've tried increasing specificity, my link to the external css is after the bootstrap cdn, I've cleared the cache, I've used !important. I can't seem to figure out what I'm missing. I'm completely new to bootstrap and am trying to figure out how to incorporate it into my website.