<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>Données Personnelles</legend>
<div class="form-group">
<label class="col-md-4 control-label" for="selectbasic">Titre</label>
<div class="col-md-4">
<select id="selectbasic" name="selectbasic" class="form-control">
<option value="1">Mademoiselle</option>
<option value="2">Madame</option>
<option value="3">Monsieur</option>
</select>
</div>
</div>
<div class="form-group">
<label class="col-md-4 control-label" for="Nom22">Nom</label>
<div class="col-md-4">
<input id="Nom22" name="Nom22" placeholder="Nom" class="form-control input-md" required="" type="text">
</div>
</div>
<div class="form-group">
<label class="col-md-4 control-label" for="Prénom">Prénom</label>
<div class="col-md-4">
<input id="Prénom" name="Prénom" placeholder="Prénom" class="form-control input-md" required="" type="text">