IOS Safari - snackbar is cutoff in landscape mode if tabs are showing

[pklein-beachbody]

To reproduce in IOS Safari. I am seeing this in iPhone 11:

• Open more than one tab in IOS Safari - landscape orientation
• Go to https://www.polonel.com/snackbar/
• Scroll down to the demo buttons, then scroll up to show tabs
• Click one of the demo buttons

Result: Snackbar is cut off
Expected: Snackbar should not be cut off

The snackbar in the lower right of this image is cut off.