<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="//cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<form class="form-horizontal">
<fieldset>
<legend>Cadastro de Usuários</legend>
<div class="form-group">
<label class="col-md-4 control-label" for="prependedtext">Prepended Text</label>
<div class="col-md-4">
<div class="input-group">
<span class="input-group-addon"><i class="fa fa-camera-retro"></i></span>
<input id="prependedtext" name="prependedtext" class="form-control" placeholder="placeholder" type="text">
</div>
<p class="help-block">help</p>
</div>
</div>
<div class="form-group">
<label class="col-md-4 control-label" for="matricula">Matrícula</label>
<div class="col-md-4">
<input id="matricula" name="matricula" type="text" placeholder="Matrícula" class="form-control input-md" required="">
<span class="help-block">Digite sua Matrícula</span>
</div>
</div>
<div class="form-group">
<label class="col-md-4 control-label" for="senha">Senha</label>
<div class="col-md-4">
<input id="senha" name="senha" type="password" placeholder="Digite sua senha" class="form-control input-md" required="">
