Demo formvalidation.io
HTML
<script src="https://code.jquery.com/jquery-1.12.4.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/js/bootstrap.min.js"></script>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap.min.css">
<script src="https://www.lamontagneexpert.ca/support/formvalidation.min.js"></script>
<link rel="stylesheet" href="https://www.lamontagneexpert.ca/support/formvalidation.min.css">
<div class="container">
<h3 class="text-center">
Ajout d'une écriture comptable
</h3>
<form id="ajout-ecriture-comptable-formulaire" class="form-horizontal">
<div class="form-group">
<label for="new-entry-lot-monetaire" class="col-xs-3 control-label">Lot monétaire</label>
<div class="col-xs-5">
<input id="new-entry-lot-monetaire" name="newEntryLotMonetaire" class="form-control" placeholder="#">
</div>
</div>
<div class="form-group">
<div class="col-xs-offset-3 col-xs-5">
<button type="submit" class="btn btn-primary">Ajouter</button>
</div>
</div>
</form>
</div>