<link href="//maxcdn.bootstrapcdn.com/bootstrap/3.3.0/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css">
<script src="//maxcdn.bootstrapcdn.com/bootstrap/3.3.0/js/bootstrap.min.js"></script>
<script src="//code.jquery.com/jquery-1.11.1.min.js"></script>
<head>
<style>
l1
{
margin-left:30em;
margin-top:1em;
}
p
{
margin-left:30em;
margin-top:1em;
}
p1
{
color:blue;
margin-left:20em;
margin-top:1em;
}
</style>
</head>
<form class="form-horizontal" action='' method="POST">
<fieldset>
<div id="legend">
<legend class=""><p1 >Register</p1></legend>
</div>
<div class="control-group">
<l1> <label class="control-label" for="username">Username</label></l1>
<div class="controls">
<l1> <input type="text" id="username" name="username" placeholder="" class="input-xlarge"></l1>
<p class="help-block">Username can contain any letters or numbers, without spaces</p>
</div>
