Mobile Safari won't allow usable bottom navigation for web applications

Ouch :( Unfortunately, mobile Safari's viewport is full of those issues.

I reported a similar one to the WebKit team a couple of months ago:

* https://gist.github.com/Reinmar/91c70d2882523f47da7c49805042...

* https://bugs.webkit.org/show_bug.cgi?id=191204

This is an issue with the viewport mechanics making it impossible to position anything in the viewport when the software keyboard is visible. This is something that every rich-text editor developer deals with and that's why none of them work really nice on iOS.

Chrome (Blink) behaves much better here – just like one would expect it to. This means that there's a pattern which Safari developers could implement in it too. Also, I talked about this with Safari's developer who worked on the current mechanism and I got the impression they weren't aware of how problematic the current implementation is for developers. So, big +1.