Add a CSS class to WooCommerce Shop Page

Using the filter body_class with the is_shop conditional you can target the main WooCommerce shop page by adding a CSS class.

add_filter( 'body_class', 'woo_shop_class' );
// Add WooCommerce Shop Page CSS Class
function woo_shop_class( $classes ) {
  if ( is_shop() )  // Set conditional
    $classes[] = 'woo-shop'; // Add Class
return $classes;
}

The above code snippet is added to your WordPress theme’s functions.php – it will add the ‘woo-shop’ CSS class to the body tag