<!DOCTYPE html>
<html>
<head>
<title>Bootstrap实例</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://apps.bdimg.com/libs/bootstrap/3.3.0/css/bootstrap.min.css">
<script src="https://libs.baidu.com/jquery/2.1.4/jquery.min.js"></script>
<script src="https://apps.bdimg.com/libs/bootstrap/3.3.0/js/bootstrap.min.js"></script>
</head>
<body>
<nav class="navbar navbar-default">
<div class="container-fluid">
<div class="navbar-header">
<a href="#" class="navbar-brand">Brand</a>
</div>
<p class="navbar-text">Signed in as <a href="#" class="navbar-link">Link Doe</a></p>
<p class="navbar-text">Signed in as <span class="navbar-link">Span Doe</span></p>
</div>
</nav>
<div class="container">
<h3>Navbar Link</h3>
<p>The .navbar-link class styles an element to look like a link inside the navbar (anchors get proper padding and an underline on hover, while other elements like p or span gets a default hover effect - white color in an inversed navbar and a black color in a default navbar).</p>
<p><b>Hover over the a and the span element to see the effect.</b></p>
</div>
</body>
</html>