I’m trying to add a custom class to input HTML tag at a checkout page in WooCoomerce.
I want to add .smartform-zip to input with name billing_postcode and same thing with billing_adress_1 and city. How can I do? I try to write some hooks or customize some code on GitHub and nothing work.
I need it for autocomplete Czech service to customers address.
Read more here:: How to add custom class to WooCommerce checkout field?