Part of event description missing when viewing Google sites from iPhone and other smart phones that have embedded Zoho Calendars

Part of event description missing when viewing Google sites from iPhone and other smart phones that have embedded Zoho Calendars

When I embed the Zoho calendar in a Google site and open up the site and the embedded calendar from iPhone and click on an event, I see only the first 7 lines of the event description displayed on iPhone. We have close to 20-25 lines in the event description and we frequently access the Google sites from iPhones and other smart phones. So we are not able to see some key pieces of information from iPhone and other smart phones. Is this an issue with Apple/Google or is it something that Zoho can fix? Will appreciate a prompt response.