<link href="//netdna.bootstrapcdn.com/bootstrap/3.0.0/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css">
<script src="//netdna.bootstrapcdn.com/bootstrap/3.0.0/js/bootstrap.min.js"></script>
<script src="//code.jquery.com/jquery-1.11.1.min.js"></script>
<form class="form-horizontal">
<fieldset>
<legend>Sign Up</legend>
<div class="form-group">
<label class="col-md-4 control-label" for="firstname">First Name</label>
<div class="col-md-4">
<input id="firstname" name="firstname" type="text" placeholder="first name" class="form-control input-md">
<span class="help-block">Enter First Name</span>
</div>
</div>
<div class="form-group">
<label class="col-md-4 control-label" for="lastname">Last Name</label>
<div class="col-md-4">
<input id="lastname" name="lastname" type="text" placeholder="last name" class="form-control input-md">
<span class="help-block">Enter Last Name</span>
</div>
</div>
<div class="form-group">
<label class="col-md-4 control-label" for="radios">Gender</label>
<div class="col-md-4">
<div class="radio">
<label for="radios-0">
<input type="radio" name="radios" id="radios-0" value="1" checked="checked">
Male