Не могу найти как поменять внешний вид календаря - Дизайн и оформление

<?php if (count($this->product->freeattributes)){?>
	<div class="prod_free_attribs">
		<div class="jshop">
			<?php foreach($this->product->freeattributes as $freeattribut){?>
				<label class="freeattributes_title">
					<span class="freeattribut_name"><?php echo $freeattribut->name;?></span>
					<?php if ($freeattribut->description) {?>
						<span class="infotultip" data-uk-tooltip="{pos:'right'}" title="<?php echo $freeattribut->description;?>"> <i class="uk-icon-info-circle"></i> </span>
					<?php } ?>
				</label>
				<span class="field"><?php echo $freeattribut->input_field;?></span>
				<?php if ($freeattribut->required){?>
					<span class="requiredtext" data-uk-tooltip="{pos:'right'}" title="<?php echo _JSHOP_REQUIRED?>">
					<i class="uk-icon-warning-sign"></i><?php }?>
				</span>
			<?php }?>
		</div>
	</div>
<?php }?>

case 1:
    $view->product->freeattributes[$k]->input_field = "<div>" . JHtml::_('calendar',
            $view->back_value['freeattr'][$v->id],
            'freeattribut[' . $v->id . ']',
            'freeattribut' . $v->id,
            '%d.%m.%Y',
            array('class' => 'inputbox')). "</div>";
    break;

.field-calendar .input-append {font-size: unset !important;}