Wix doesn’t work with HTML code, it uses Javascript.
If you want to do things like query, then use js.
https://www.wix.com/corvid/reference/wix-data.WixDataQuery.html
Same with hooks in your datasets.
https://support.wix.com/en/article/corvid-using-data-hooks
https://www.wix.com/corvid/reference/wix-data.Hooks.html
Although, if you are talking about Wix Stores, then they have their own Wix Support pages.
https://support.wix.com/en/wix-stores/setting-up-your-store
https://support.wix.com/en/article/hiding-the-price-of-a-product-in-wix-stores
https://support.wix.com/en/corvid-by-wix/wix-stores-with-corvid