You can filter the class applied to each product extra field, just use the pewc_filter_single_product_classes filter:
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| <?php | |
| /** | |
| * Filter field classes | |
| */ | |
| function prefix_filter_single_product_classes( $classes, $item ) { | |
| $classes[] = 'my-class-name'; | |
| // You can also use $item to check the field ID and add classes conditionally | |
| return $classes; | |
| } | |
| add_filter( 'pewc_filter_single_product_classes', 'prefix_filter_single_product_classes', 10, 2 ); |
The filter also passes the $item object so you can do conditional stuff based on the item.