The following code shows how to create Navbar with Search From.
<!DOCTYPE html>
<html lang="en">
<head>
<link rel="stylesheet"
href="http://netdna.bootstrapcdn.com/bootstrap/3.0.3/css/bootstrap.min.css">
<link rel="stylesheet"
href="http://netdna.bootstrapcdn.com/bootstrap/3.0.3/css/bootstrap-theme.min.css">
<script type="text/javascript"
src="http://code.jquery.com/jquery.min.js"></script>
<script
src="http://netdna.bootstrapcdn.com/bootstrap/3.0.3/js/bootstrap.min.js"></script>
<style type="text/css">
.bs-example {<!--from w w w .j a va2 s . c om-->
margin: 20px;
}
</style>
</head>
<body>
<div class="bs-example">
<nav role="navigation" class="navbar navbar-default">
<div class="navbar-header">
<button type="button" data-target="#navbarCollapse"
data-toggle="collapse" class="navbar-toggle">
<span class="sr-only">Toggle navigation</span> <span
class="icon-bar"></span> <span class="icon-bar"></span> <span
class="icon-bar"></span>
</button>
<a href="#" class="navbar-brand">Brand</a>
</div>
<div id="navbarCollapse" class="collapse navbar-collapse">
<form role="search" class="navbar-form navbar-left">
<div class="form-group">
<input type="text" placeholder="Search" class="form-control">
</div>
<button type="submit" class="btn btn-default">Submit</button>
</form>
</div>
</nav>
</div>
</body>
</html>