Change product description display on single product in WooCommerce

functions.php

<?php
/**
 * Change product description display on single product
 */
function belise_woocommerce_template_single_excerpt() {
	global $post;

	if ( ! $post->post_excerpt ) {
		return;
	}
	?>
	<div class="custom-class" itemprop="description">
		<?php echo apply_filters( 'woocommerce_short_description', $post->post_excerpt ); ?>
	</div><?php
}
?>

hooks.php

<?php
// Remove default
remove_action( 'woocommerce_single_product_summary', 'woocommerce_template_single_excerpt', 20 );

// Add new description display
add_action( 'woocommerce_single_product_summary', 'CUSTOM_woocommerce_template_single_excerpt', 20 );
?>