<link href="//netdna.bootstrapcdn.com/bootstrap/3.0.3/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css">
<script src="//netdna.bootstrapcdn.com/bootstrap/3.0.3/js/bootstrap.min.js"></script>
<script src="//code.jquery.com/jquery-1.11.1.min.js"></script>
<center>
<div class="container">
<div class="row">
<div class="col-md-6 col-md-offset-3">
<div class="well well-sm">
<form class="form-horizontal" action="" method="post">
<fieldset>
<legend class="text-center">PARTICIPE</legend>
<div class="form-group">
<label class="col-md-3 control-label" for="name">Nome</label>
<div class="col-md-9">
<input id="name" name="name" type="text" placeholder="Mix Rádio" class="form-control">
</div>
</div>
<div class="form-group">
<label class="col-md-3 control-label" for="name">Artista / Música</label>
<div class="col-md-9">
<input id="Artista / Música" name="name" type="text" placeholder="simone e simaria - duvido você não tomar uma" class="form-control">
</div>
</div>
<div class="form-group">
<label class="col-md-3 control-label" for="name">Bairro / Cidade</label>
<div class="col-md-9">
<input id="bairro / cidade" name="name" type="text" placeholder="Centro / Colorado" class="form-control">