Slider not expanding to fullscreen on Mac

Can you post your site here? SO that I can check.

Sorry for the late reply. Here is the website https://ksmilmuseum.org/

Hello I have checked in

safari it looks good check here screenshot.I have installed it in windows.I havn’t mac.

https://my-php-scripts.net/images/safari.png

If it is only mac problem I think you can solve it by css Just ask your css designer.

Thanks

Thanks for your prompt response. Yes, it is only on Mac. I built the website, and I am the one who edits the css codes, but only I only know the basics. I researched and have not found anything that would help me out yet. I will keep working on it. Thanks