At a complete loss on this site

At a complete loss on this site. Looks very simple but can't even get it started. Just trying to drill into the HTS Codes and pull back their code/descriptions. Any help would be much appreciated. Thanks

Url: https://www.datamyne.com/hts

Sitemap:
{"_id":"tariff_codes","startUrl":["https://www.datamyne.com/hts"],"selectors":[]}