<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap Example</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.2/jquery.min.js"></script>
<script src="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>
</head>
<body>
<div class="container">
<h2>Column Sizing</h2>
<p>The form below shows input elements with different widths using different .col-xs-* classes:</p>
<form role="form">
<div class="form-group">
<div class="col-xs-2">
<label for="ex1">col-xs-2</label>
<input class="form-control" id="ex1" type="text">
</div>
<div class="col-xs-3">
<label for="ex2">col-xs-3</label>
<input class="form-control" id="ex2" type="text">
</div>
<div class="col-xs-4">
<label for="ex3">col-xs-4</label>
<input class="form-control" id="ex3" type="text">
</div>
</div>
</form>
</div>
</body>
</html>