CSS help needed for iPhone X.

An icon on my website does not appear in the correct position on the iPhone X.

This is how it looks on the iPhone X.

https://static.livechatinc.com/8801096/P9T56S6R1W/682a85e0baac26f4f818b6d34acb376c/Screen%20shot.jpg

This is how it should look.

https://static.livechatinc.com/8801096/P9T56S6R1W/4a7d99c514e11c7caf2bfe52f12688e8/Image-1.jpg

Please help.