Hello,

Sorry for the delay in the response due to the weekend.

As you know, by default WooCommerce allows only one Category to be selected as Default Category but you can switch the Default Category among your Site Categories using the row actions underneath the category name. Then In this way, the Default Category can be deleted as it is no longer the default: https://ibb.co/1LzHjSD

So, if the Accessories Category on your Site is the Default Category then you can follow the above solution and try not using the CSS then.

Best Regards.