To properly style and position a form within the navbar,
add the appropriate classes as shown below. For a default
form, include .navbar-form and either .pull-left or
.pull-right to properly align it.
<!DOCTYPE HTML>
<html>
<head>
<link href="http://java2s.com/style/bootstrap.min.css" rel="stylesheet">
<script src="http://java2s.com/style/jquery-1.8.0.min.js"></script>
<script src="http://java2s.com/style/bootstrap.min.js"></script>
</head><!-- ww w.j a v a 2 s . c o m-->
<body style='margin:20px;'>
<div class="navbar">
<form class="navbar-form pull-left">
<input type="text" class="form-control" style="width: 200px;">
<button type="submit" class="btn btn-default">Submit</button>
</form>
</div>
</body>
</html>