<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>
<form class="form-horizontal">
<fieldset>
<legend></legend>
<div class="form-group">
<label class="col-md-4 control-label" for="nome">Nome</label>
<div class="col-md-5">
<input id="nome" name="nome" placeholder="Nome" class="form-control input-md" type="text">
<span class="help-block">Nome de Artigo</span>
</div>
</div>
<div class="form-group">
<label class="col-md-4 control-label" for="descricao">Descrição</label>
<div class="col-md-5">
<input id="descricao" name="descricao" placeholder="Descrição" class="form-control input-md" type="text">
<span class="help-block">Descrição de Produto</span>
</div>
</div>
<div class="form-group">
<label class="col-md-4 control-label" for="preco">Preço</label>
<div class="col-md-2">
<input id="preco" name="preco" placeholder="Preço" class="form-control input-md" type="text">
<span class="help-block">Preço de Venda</span>
</div>
</div>