<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>
<link rel="stylesheet" href="bootstrap.min.css">
<form class="form-horizontal">
<fieldset>
<legend>Pre-Registration Form [For Students]</legend>
<div class="form-group">
<label class="col-md-4 control-label" for="textinput">Name</label>
<div class="col-md-4">
<input id="textinput" name="textinput" type="text" placeholder="Your Full Name" class="form-control input-md" required="">
</div>
</div>
<div class="form-group">
<label class="col-md-4 control-label" for="selectbasic">Class</label>
<div class="col-md-2">
<select id="selectbasic" name="selectbasic" class="form-control">
<option value="1">IX</option>
<option value="2">X</option>
<option value="3">XI</option>
<option value="4">XII</option>
</select>
</div>
<span class="help-block">If in Class X, "Interested In" would be disabled</span>
</div>
<div class="form-group">