Código
<div class="row frm-down"> <div class="form-group"> <div class="col-xs-4"> <div> <select class='form-control select_product' id='select_product' name='select_product'> <?php foreach ($row as $rows) { ?> <?php } ?> </select> </div> </div> </div> <div class="form-group"> <div class="col-xs-3 frm-price"> <input type="text" class="form-control" id="txt_amount" name="txt_amount" onkeyup="validacion('txt_amount');" placeholder="amount" maxlength="5"> </div> </div> <div class="col-lg-2"> <div> </div> </div> </div>