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Search box for Covid-19 site

I am new to webflow/javascript, just trying to help my community. I followed a Youtube video by PixelGeek " How to Webflow: Instant, on-page search - Tutorial (2019)" about a script to have live on page search ([https://youtube.com/watch?v=4Rglv2WauSo]) but I am having no results with the search box. I tried everything, read comments, tried all possible names for the class, etc. The live search box is just not working.

I know there is jetboost but have to pay a monthly fee for a custom domain that I am trying to avoid because I’m not getting anything out of this, so if I could make a regular javascript (?) search bar mentioned in the video work, it would be Amazing.

I thought maybe I have a class wrong in the script, so I tried .New-Business-Item, .Name, .Business-Name, .Business, .Businesses… Ran out of ideas…

Read-only link: https://preview.webflow.com/preview/naples-covid-19?utm_medium=preview_link&utm_source=dashboard&utm_content=naples-covid-19&preview=cee75439547ee629a92879dadae02e97&mode=preview