Yes, you would simply override the function in your child theme functions.php file:
/* PRODUCT BADGE
================================================== */
if ( ! function_exists( 'sf_woo_product_badge' ) ) {
function sf_woo_product_badge() {
global $product, $post;
$sf_options = sf_get_theme_opts();
$postdate = get_the_time( 'Y-m-d' ); // Post date
$postdatestamp = strtotime( $postdate ); // Timestamped post date
$newness = $sf_options['new_badge']; // Newness in days
?>
<div class="badge-wrap">
<?php
if (sf_is_out_of_stock()) {
echo '<span class="out-of-stock-badge">' . __( 'Sold out', 'uplift' ) . '</span>';
} else if ($product->is_on_sale()) {
echo apply_filters('woocommerce_sale_flash', '<span class="onsale">'.__( 'Sale', 'uplift' ).'</span>', $post, $product);
} else if ( ( time() - ( 60 * 60 * 24 * $newness ) ) < $postdatestamp ) {
// If the product was published within the newness time frame display the new badge
echo '<span class="wc-new-badge">' . __( 'New', 'uplift' ) . '</span>';
} else if ( $product->get_price() != "" && $product->get_price() == 0 ) {
echo '<span class="free-badge">' . __( 'Free', 'uplift' ) . '</span>';
}
?>
</div>
<?php }
}
You can change the text size using CSS: http://www.w3schools.com/css/css_font.asp.
So using the above instructions:
.badge-wrap {
font-size: 18px!important;
}
.