<div cod="<?php echo $observacao->csoid; ?>" class="observacao row">
    <div class="col-xs-4">
        <span><?php echo (new DateTime($observacao->csotimestamp))->format('d/m/Y H:i:s'); ?></span>
    </div>
    <div class="col-xs-8">
        <span><?php echo $observacao->csotexto; ?></span>
    </div>
</div>