With the iPhone X’s notch came viewport-fit=cover and safe-area-inset, as explained here. It turns out that safe-area-inset is 0 on iOS11 devices that are not the iPhone X. This may sound logical, but I wonder if it is. Also, the value remains static, even when you zoom in. Note: testing for this article was done exclusively on Apple’s simulator. To recap briefly: viewport-fit=cover, when added to