robdvr

add_filter('woocommerce_billing_fields', 'custom_woocommerce_billing_fields');

function custom_woocommerce_billing_fields( $fields ) {
  $fields['billing_address_1']['class'] = array( 'form-group' );
  $fields['billing_address_1']['input_class'] = array( 'form-control' );
  return $fields;
}