PLEASE HELP: How do I stop the safari bar from blocking my taskbar?

Hi All!
I have been making an app prototype for my uni project but am having an issue. When I sent a link to my friends to test the app, it opened in Safari and ultimately the Safari search bar blocked the taskbar I had made for the app. When you open the app in Figma, it’s fine tho. Does anyone have a remedy for this?
Thank you!