I was developing an external website that generates data into an .html file based on database information, displaying availability by a fill color (green or red). On Windows and Android devices, everything displays correctly. On Apple devices (tested on iPhone7 in Safari and Chrome, and a Macbook Pro on Safari), it cannot process the colors and leaves everything gray.
My current guess is that Apple's OS does not accept a css tag I used on the page, but I've been unable to narrow down my search effectively. I would greatly appreciate any assistance.
Page: https://hsfm-booking-maps.s3.amazonaws.com/Farmer%27s+Market+-+Sunday%2C+October+2nd%2C+2022